allow negative balance
propagate elsewhere.is_team to participants.number
create GitHub.is_team_admin()
implement connecting elsewhere team accounts
allow pledge/lock/unlock for elsewhere team accounts
prevent connecting a team account without having another account to log in
move the list of team members to the bottom of the page
implement connecting a team account from the profile page
Redirect /for/contributors over to BG
Change test for /for/contributors/
Merge pull request #2414 from gittip/redirect-for-contributors

Redirect /for/contributors over to BG
Clarify that gratitude gem is feature complete
Merge pull request #2415 from JohnKellyFerguson/gratitude-readme-update

Update README to clarify that gratitude gem is feature complete
Add Gittip API implementation
Merge pull request #2416 from zachborboa/patch-1

Add Gittip API implementation
add platform.allows_team_connect
Merge pull request #2326 from gittip/elsewhere-teams

Elsewhere teams
Bump version to 13.0.0
Bump version to 13.0.0-dev
remove applied branch.sql