Removed the restrictions imposed by 'is_accepted'.
Simplified the security checks
Fixed test
Unified the date formatting
Unified invoice dates
Added comparison for YearWeek
Fixed year/week comparison now that the rendering is different
Emptied out the navbar a bit.

Preparation for a search box
Bookings now visible per user, not just only for yourself
Fixed sorting of 'p1233.10' versus 'p1233.2'
typo
Showing all unarchived projects in person view.
Previous version also excluded the projects whose end date had passed.
Added 'nowrap' for project widget, preventing it from wrapping lines
Longer description form field for projects
Updated changelog
Updated changelog
Merge pull request #37 from nens/reinout-changes1

A bunch of changes/fixes