Finish user signup and activation.
Merge pull request #394 from benkonrath/member-signup

Finish user signup and activation.
Voucher has been updated
Deal with race condition in user activation.
Merge pull request #395 from benkonrath/member-signup

Deal with race condition in user activation.
Removed Djangochoices, cleaning up code using labels
Merge pull request #396 from stevano/salesforce-5

Salesforce 5
Add ProjectPitch to projects
Saving pitches
Ember status pages for pitches
Change phase on projects
Show some data on project detail page again
Add media to pitch/plan
Upload pitch image
Add organizations to projectplan
autocomplete tags
Add organization forms (addresses)
Upload secure files
Add org, bank, ambassadors to plan
Complete project plan with ember checks