* working on new presentation type for tasks
* started new interface for organization
* Working on thumbnails
* Small refactoring
* Small tweak on time left in clock
* Small css modif
* Added filter on finished tasks
* Added tags filters
* Added loader
* Added loader
* Remade the vertical align system for thunmbnails in tasks index
* Temporarily removed text on tasks progress bars
* Small correction on scrolling in tasks index
* Made the new interface for activities index - thumbnails container done
* Corrected thumbnails container pbs + added types/archives filters to activity index
* Several bugfixes in tasks and activities indexes
* Corrected page location in header (tasks show toggled the activity tab)
Merge branch 'Features/organization-new_interface' into Features/organization