Delete migrations
Make sure migration dir exists
Remove obsolete TODO
Allow negative geocoordinates

As reported in http://git.io/KjgeiQ allowing only positive coordinates
excludes half the globe.
Missed rename
Handle tuples in XML serializer
Add DeletedTask.getStartOn

Fixes issues with deleted tasks in history/failed task list and
dequeuing them
SlotSchedule scope issue

Caused by removed import in e5b10bb2
Make return value consistent
UTF8-encode category atom feed

feeding unicode into a stringio is not a very good idea...
Don't use removed function
PosterSlotSchedule scope issue

Caused by removed import in e5b10bb2
Add config option for whoosh storage
Fix unicode error in error mails
Don't try to join LazyProxy objects
Include all egroup-owned rooms into "My rooms"
Fix manager group checks
Missed rename
Fix reservations in my rooms
Fix event apis