ADD: displaying search form bloc into region--header template
add modules rules, references, book
Merge branch 'feature_header' of https://github.com/aguenee/opp into feature_expeditions
UP: search form style
add expedition templates and css
FIX: bug with sticky nav fixed
add list expedition
fix conflict
FIX: merge conflict
FIX: merge conflict
Merge branch 'master' of https://github.com/aguenee/opp into feature_contributeur
style contributeur -- barre alphabet