Merge remote-tracking branch 'origin/master' into cdz/issue-sync
[minor] Documentation improvements
[minor] Make output more user-friendly
Improve method naming in NSDictionary+GithubAPIAdditions category
Doc improvements in IssueSyncDelegate
Add Issue sync methods to IssueSyncDelegate interface
Rename local collection in Things sync delegate; we can reuse it.
Further improve NSDictionary category method naming
Clean up constant naming in IssueSyncEngine
Add issue sync support to IssueSyncEngine
Update rules in README
Add necessary methods to NSDictionary+GithubAPIAdditions
Move assertions in ThingsSyncDelegate to the proper place
Implement issue sync
Add debug logging to ThingsHubApplication

cc: @andrewsardone
Avoid certain unnecessary setter calls in ThingsSyncDelegate

These calls apparently have the side effect of reordering todos within their project or area.
Merge remote-tracking branch 'origin/master' into cdz/issue-sync
Merge pull request #7 from cdzombak/cdz/issue-sync

Add issue sync