Conductors and buspreneurs can edit profiles (permissions based)

Buspreneurs can join a team
Buspreneurs can create a team (link from their profile)

Close #33
Add team milestone request
Show investment button to investors and edit button to buspreneurs
Allow empty logo url, since it is a later milestone
Auto-add buspreneur to the team they create
Allow team members to submit milestone requests for their teams
teams and milestones have many requests
Make it possible for admins to approve milestone requests
Allow admin to set # of points when approving a milestone
Fixed a bug where investments wouldn't get deleted if a team was
Only show milestones that have started
totals appear to be working
leaderboard sorts by milestone points
Use 2.0.0
Merge branch 'leaderboard' of github.com:buspreneurs/startupbus-na-2014-game into leaderboard
Use 2.0.0