- Do not display anymore the identifier field in home.
- Let the user enter the id if the slug generated from project name already exists as a project id.
- Moved get_billform_for from 'utils' to 'forms', to avoid issue (was 'from forms import ...' into utils,
and 'from utils import ...' into forms, which causeed an error).
Uses uni-form to style forms and add a macro to ease this.
Of course, the overall thing has to be reworked, but having this in place will
help us to have something easier to change when we will really care about design.
All the form templates can now be defined in templates/forms.html and be called
thansk to {{ forms.name_of_the_form(form) }}.
I've done some styling, but that's really not my thing, feel free to modify it.
