[mod] French translation
[enh] Move common head part to base.haml
[enh] Also translate filter bar

@psycojoker I think limiting text width with <br>s is clearly inadapted and will be more and more impractical with more and more translations.
Could you bring a magic touch of CSS to this bar ?
[enh] Finish french translation RC1
[enh] Try to implement #60: 1 file per agenda. To be done: automatically assign agenda in DB from file name
[enh] Automatically name calendar in database from file name (untested because lack of internet)
[fix] imports
[fix] remove debug line; prettier logging
[ref] Split code in 2 methods
Merge branch 'translation'
[mod] waiting for us to find a good way to do css
[mod] remove useless imports
[fix] TABS
[mod] remove env.py file
[fix] actually use load_agendas
[mod] remove useless var
[mod] pep8
[fix] clean global var CURRENT_AGENDA stuff
[fix] meh
Merge branch 'one_agenda_per_file'