Remove a global; refs #414
Implement basic Slim application that handles authentication
Display dashboard
Make plugins menu entries not to cause errors
Improve logo route, add photo, member, members and subscribed routes; adapt relevant templates
Add lost password route
Public memberslist and trombinoscope routes
Add ending slash if missing, to get correct path to CSS, JS and images
Undefined index
Add groupes route
Add contributions route
Adaptations after rebasing
Missing visibles fields
Fixes after rebasing
Add preferences route (and storage \o/)
Remove old smarty assignments; missing logger namespace declaration
Display custom logo in preferences
Use Slim-Views instead of deprecated Slim-Extras, works with latest Slim release
Fix some resources path
Update copyright