diff --git a/AUTHORS b/AUTHORS
index f104070..89a2af3 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -1,2 +1,2 @@
-The project has been started by Alexis Métaireau and Frédéric Sureau. Friends are 
+The project has been started by Alexis Métaireau and Frédéric Sureau. Friends are
 helping since that in the persons of Arnaud Bos and Quentin Roy.
diff --git a/LICENSE b/LICENSE
index a668284..ecc7977 100644
--- a/LICENSE
+++ b/LICENSE
@@ -19,7 +19,7 @@ that the following conditions are met:
   promote products derived from this software without specific
   prior written permission.
 
-* If you meet the authors of this software in person and you want to 
+* If you meet the authors of this software in person and you want to
   pay them a beer, you're encouraged to do so. Please, do. If you have
   homebrewed beer, this works as well (may even be better).
 
diff --git a/README.rst b/README.rst
index 80e2fb0..8bcc648 100644
--- a/README.rst
+++ b/README.rst
@@ -27,7 +27,7 @@ the following content::
     DEBUG = True
     SQLACHEMY_ECHO = DEBUG
 
-You can also set the `TESTING` flag to `True` so no mails are sent 
+You can also set the `TESTING` flag to `True` so no mails are sent
 (and no exception is raised) while you're on development mode.
 
 Deploy it
@@ -66,7 +66,7 @@ As a developer
 --------------
 
 The best way to contribute code is to write it and to make a pull request on
-github. Please, think about updating and running the tests before asking for 
+github. Please, think about updating and running the tests before asking for
 a pull request as it will help us to maintain the code clean and running.
 
 To do so::
diff --git a/budget/static/css/main.css b/budget/static/css/main.css
index 3274241..97a3e19 100644
--- a/budget/static/css/main.css
+++ b/budget/static/css/main.css
@@ -180,7 +180,7 @@ tr.payer_line .balance-name{
     background: url('../images/reactivate.png') left no-repeat;
     color: white;
 }
-    
+
 #bill-form > fieldset {
     margin-top: 10px;
 }
diff --git a/budget/templates/authenticate.html b/budget/templates/authenticate.html
index dc62a70..98914d0 100644
--- a/budget/templates/authenticate.html
+++ b/budget/templates/authenticate.html
@@ -3,7 +3,7 @@
 <h2>Authentication</h2>
 
 {% if create_project %}
-<p class="info">{{ _("The project you are trying to access do not exist, do you want 
+<p class="info">{{ _("The project you are trying to access do not exist, do you want
 to") }} <a href="{{ url_for(".create_project", project_id=create_project) }}">{{ _("create it") }}</a>{{ _("?") }}
 </p>
 {% endif %}
diff --git a/budget/templates/forms.html b/budget/templates/forms.html
index 2904e0d..ec73515 100644
--- a/budget/templates/forms.html
+++ b/budget/templates/forms.html
@@ -76,12 +76,12 @@
     <fieldset>
         {% if title %}<legend>{% if edit %}{{ _("Edit this bill") }} {% else %}{{ _("Add a bill") }} {% endif %}</legend>{% endif %}
     {% include "display_errors.html" %}
-    {{ form.hidden_tag() }} 
-    {{ input(form.date, class="datepicker") }} 
-    {{ input(form.what) }} 
-    {{ input(form.payer) }} 
-    {{ input(form.amount) }} 
-    {{ input(form.payed_for) }} 
+    {{ form.hidden_tag() }}
+    {{ input(form.date, class="datepicker") }}
+    {{ input(form.what) }}
+    {{ input(form.payer) }}
+    {{ input(form.amount) }}
+    {{ input(form.payed_for) }}
     </fieldset>
     <div class="actions">
         {{ form.submit(class="btn btn-primary") }}
diff --git a/budget/templates/invitation_mail.en b/budget/templates/invitation_mail.en
index 4f5bbf0..e4ff0e9 100644
--- a/budget/templates/invitation_mail.en
+++ b/budget/templates/invitation_mail.en
@@ -1,4 +1,4 @@
-Hi, 
+Hi,
 
 Someone using the email address {{ g.project.contact_email }} invited you to share your expenses for "{{ g.project.name }}".
 
diff --git a/budget/templates/list_bills.html b/budget/templates/list_bills.html
index f9d372a..899fdeb 100644
--- a/budget/templates/list_bills.html
+++ b/budget/templates/list_bills.html
@@ -42,13 +42,13 @@
         });
         $("#bal-member-"+payer_id).addClass("payer_line");
     };
-    
+
     var unhighlight_owers = function(){
         $('[id^="bal-member-"]').removeClass("ower_line payer_line");
     };
-    
+
     $('#bill_table tbody tr').hover(highlight_owers, unhighlight_owers);
-    
+
 {% endblock %}
 
 {% block sidebar %}
diff --git a/budget/templates/password_reminder.en b/budget/templates/password_reminder.en
index fc24a6f..31210aa 100644
--- a/budget/templates/password_reminder.en
+++ b/budget/templates/password_reminder.en
@@ -1,4 +1,4 @@
-Hi, 
+Hi,
 
 You requested to be reminded about your password for "{{ project.name }}".
 
diff --git a/budget/templates/reminder_mail.en b/budget/templates/reminder_mail.en
index b2e3a65..fe57be2 100644
--- a/budget/templates/reminder_mail.en
+++ b/budget/templates/reminder_mail.en
@@ -1,4 +1,4 @@
-Hi, 
+Hi,
 
 You have just (or someone else using your email address) created the project "{{ g.project.name }}" to share your expenses.
 
diff --git a/budget/templates/send_invites.html b/budget/templates/send_invites.html
index 9ddded1..7b3bdc5 100644
--- a/budget/templates/send_invites.html
+++ b/budget/templates/send_invites.html
@@ -9,7 +9,7 @@
 {% endblock %}
 {% block content %}
 <h2>{{ _("Invite people to join this project") }}</h2>
-<p>{{ _("Specify a (comma separated) list of email adresses you want to notify about the 
+<p>{{ _("Specify a (comma separated) list of email adresses you want to notify about the
 creation of this budget management project and we will send them an email for you.") }}</p>
 <p>{{ _("If you prefer, you can") }} <a href="{{ url_for(".list_bills") }}">{{ _("skip this step") }}</a> {{ _("and notify them yourself") }}</p>
 
diff --git a/budget/tests.py b/budget/tests.py
index 0f7c2a2..1fb9fe4 100644
--- a/budget/tests.py
+++ b/budget/tests.py
@@ -532,7 +532,7 @@ class BudgetTestCase(TestCase):
         for m, a in members.items():
             self.assertEqual(a, balance[m.id])
         return
-        
+
 
 
 class APITestCase(TestCase):
diff --git a/conf/nginx.conf b/conf/nginx.conf
index c4a9ad5..9ae2ca0 100644
--- a/conf/nginx.conf
+++ b/conf/nginx.conf
@@ -2,9 +2,9 @@ server {
     server_name yourur;
     keepalive_timeout 5;
 
-    location /static/ {    
+    location /static/ {
         alias   /path/to/app/budget/static/;
-    }   
+    }
     location / {
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
         proxy_set_header Host $http_host;
diff --git a/docs/_themes/pelican/static/pelican.css_t b/docs/_themes/pelican/static/pelican.css_t
index 3cb2a3c..8d8a9b2 100644
--- a/docs/_themes/pelican/static/pelican.css_t
+++ b/docs/_themes/pelican/static/pelican.css_t
@@ -6,11 +6,11 @@
  *
  * :copyright: Copyright 2011 by Alexis Metaireau.
  */
- 
+
 @import url("basic.css");
- 
+
 /* -- page layout ----------------------------------------------------------- */
- 
+
 body {
     font-family: Arial, sans-serif;
     font-size: 100%;
@@ -32,17 +32,17 @@ div.bodywrapper {
 hr {
     border: 1px solid #B1B4B6;
 }
- 
+
 div.document {
 }
- 
+
 div.body {
     background-color: #ffffff;
     color: #3E4349;
     padding: 0 30px 30px 30px;
     font-size: 0.9em;
 }
- 
+
 div.footer {
     color: #555;
     width: 100%;
@@ -50,12 +50,12 @@ div.footer {
     text-align: center;
     font-size: 75%;
 }
- 
+
 div.footer a {
     color: #444;
     text-decoration: underline;
 }
- 
+
 div.related {
     background-color: #6BA81E;
     line-height: 32px;
@@ -63,11 +63,11 @@ div.related {
     text-shadow: 0px 1px 0 #444;
     font-size: 0.9em;
 }
- 
+
 div.related a {
     color: #E2F3CC;
 }
- 
+
 div.sphinxsidebar {
     font-size: 0.75em;
     line-height: 1.5em;
@@ -76,7 +76,7 @@ div.sphinxsidebar {
 div.sphinxsidebarwrapper{
     padding: 20px 0;
 }
- 
+
 div.sphinxsidebar h3,
 div.sphinxsidebar h4 {
     font-family: Arial, sans-serif;
@@ -92,30 +92,30 @@ div.sphinxsidebar h4 {
 div.sphinxsidebar h4{
     font-size: 1.1em;
 }
- 
+
 div.sphinxsidebar h3 a {
     color: #444;
 }
- 
- 
+
+
 div.sphinxsidebar p {
     color: #888;
     padding: 5px 20px;
 }
- 
+
 div.sphinxsidebar p.topless {
 }
- 
+
 div.sphinxsidebar ul {
     margin: 10px 20px;
     padding: 0;
     color: #000;
 }
- 
+
 div.sphinxsidebar a {
     color: #444;
 }
- 
+
 div.sphinxsidebar input {
     border: 1px solid #ccc;
     font-family: sans-serif;
@@ -125,19 +125,19 @@ div.sphinxsidebar input {
 div.sphinxsidebar input[type=text]{
     margin-left: 20px;
 }
- 
+
 /* -- body styles ----------------------------------------------------------- */
- 
+
 a {
     color: #005B81;
     text-decoration: none;
 }
- 
+
 a:hover {
     color: #E32E00;
     text-decoration: underline;
 }
- 
+
 div.body h1,
 div.body h2,
 div.body h3,
@@ -151,7 +151,7 @@ div.body h6 {
     padding: 5px 0 5px 10px;
     text-shadow: 0px 1px 0 white
 }
- 
+
 {% if theme_index_logo %}
 div.indexwrapper h1 {
     text-indent: -999999px;
@@ -159,10 +159,10 @@ div.indexwrapper h1 {
     height: {{ theme_index_logo_height }};
 }
 {% endif %}
-div.body h1 { 
-    border-top: 20px solid white; 
-    margin-top: 0; 
-    font-size: 250%; 
+div.body h1 {
+    border-top: 20px solid white;
+    margin-top: 0;
+    font-size: 250%;
     text-align: center;
 }
 
@@ -171,23 +171,23 @@ div.body h3 { font-size: 120%; background-color: #D8DEE3; }
 div.body h4 { font-size: 110%; background-color: #D8DEE3; }
 div.body h5 { font-size: 100%; background-color: #D8DEE3; }
 div.body h6 { font-size: 100%; background-color: #D8DEE3; }
- 
+
 a.headerlink {
     color: #c60f0f;
     font-size: 0.8em;
     padding: 0 4px 0 4px;
     text-decoration: none;
 }
- 
+
 a.headerlink:hover {
     background-color: #c60f0f;
     color: white;
 }
- 
+
 div.body p, div.body dd, div.body li {
     line-height: 1.5em;
 }
- 
+
 div.admonition p.admonition-title + p {
     display: inline;
 }
@@ -200,29 +200,29 @@ div.note {
     background-color: #eee;
     border: 1px solid #ccc;
 }
- 
+
 div.seealso {
     background-color: #ffc;
     border: 1px solid #ff6;
 }
- 
+
 div.topic {
     background-color: #eee;
 }
- 
+
 div.warning {
     background-color: #ffe4e4;
     border: 1px solid #f66;
 }
- 
+
 p.admonition-title {
     display: inline;
 }
- 
+
 p.admonition-title:after {
     content: ":";
 }
- 
+
 pre {
     padding: 10px;
     background-color: #111;
@@ -234,7 +234,7 @@ pre {
     -webkit-box-shadow: 1px 1px 1px #d8d8d8;
     -moz-box-shadow: 1px 1px 1px #d8d8d8;
 }
- 
+
 tt {
     background-color: #ecf0f3;
     color: #222;
diff --git a/docs/api.rst b/docs/api.rst
index 34edbdb..ce5df71 100644
--- a/docs/api.rst
+++ b/docs/api.rst
@@ -64,18 +64,18 @@ Getting information about the project::
 
     $ curl --basic -u demo:demo http://ihatemoney.notmyidea.org/api/projects/demo
     {
-        "name": "demonstration", 
-        "contact_email": "demo@notmyidea.org", 
-        "password": "demo", 
+        "name": "demonstration",
+        "contact_email": "demo@notmyidea.org",
+        "password": "demo",
         "id": "demo",
-        "active_members": [{"activated": true, "id": 31, "name": "Arnaud"}, 
-                            {"activated": true, "id": 32, "name": "Alexis"}, 
-                            {"activated": true, "id": 33, "name": "Olivier"}, 
-                            {"activated": true, "id": 34, "name": "Fred"}], 
-        "members": [{"activated": true, "id": 31, "name": "Arnaud"}, 
-                    {"activated": true, "id": 32, "name": "Alexis"}, 
-                    {"activated": true, "id": 33, "name": "Olivier"}, 
-                    {"activated": true, "id": 34, "name": "Fred"}], 
+        "active_members": [{"activated": true, "id": 31, "name": "Arnaud"},
+                            {"activated": true, "id": 32, "name": "Alexis"},
+                            {"activated": true, "id": 33, "name": "Olivier"},
+                            {"activated": true, "id": 34, "name": "Fred"}],
+        "members": [{"activated": true, "id": 31, "name": "Arnaud"},
+                    {"activated": true, "id": 32, "name": "Alexis"},
+                    {"activated": true, "id": 33, "name": "Olivier"},
+                    {"activated": true, "id": 34, "name": "Fred"}],
     }
 
 
@@ -101,15 +101,15 @@ Members
 You can get all the members with a `GET` on `/api/projects/<id>/members`::
 
     $ curl --basic -u demo:demo http://ihatemoney.notmyidea.org/api/projects/demo/members\
-    [{"activated": true, "id": 31, "name": "Arnaud"}, 
-     {"activated": true, "id": 32, "name": "Alexis"}, 
+    [{"activated": true, "id": 31, "name": "Arnaud"},
+     {"activated": true, "id": 32, "name": "Alexis"},
      {"activated": true, "id": 33, "name": "Olivier"},
      {"activated": true, "id": 34, "name": "Fred"}]
 
 Add a member with a `POST` request on `/api/projects/<id>/members`::
 
     $ curl --basic -u demo:demo -X POST\
-    http://ihatemoney.notmyidea.org/api/projects/demo/members -d 'name=tatayoyo' 
+    http://ihatemoney.notmyidea.org/api/projects/demo/members -d 'name=tatayoyo'
     35
 
 You can also `PUT` a new version of a member (changing its name)::
@@ -122,7 +122,7 @@ You can also `PUT` a new version of a member (changing its name)::
 Delete a member with a `DELETE` request on `/api/projects/<id>/members/<member-id>`::
 
     $ curl --basic -u demo:demo -X DELETE\
-    http://ihatemoney.notmyidea.org/api/projects/demo/members/35 
+    http://ihatemoney.notmyidea.org/api/projects/demo/members/35
     "OK
 
 Bills