make favoriting API calls work propertly with new favorites UI. add favorite icons to tour and venue view controllers
Merge pull request #37 from alexebird/2.1-stats-fixes

2.1 stats fixes - round 2
use head for TDBadgedCell. fixes #33
update platform to ios6
Merge pull request #38 from lholmquist/podfile_update

update platform to ios6
ios 7.1 fixes. closes #40
bump version