Fixed issue with crashing map view when tapping on a pin (#74)
Fixed comment form not using pre-filled author name and email in settings (Issue #77).
Removed SynthesizeSingleton.h

Changed all singletons to the modern GCD/ARC singleton
Switchd project to ARC, and turned on ARC support

Note: Many files are changed here. Mainly deallocs and autorelease
calls are removed, and retain properties changed to strong.
Removed issues from Xcode project.

Issues include deprecated UILineBreakModeWordWrap and
presentModalViewController in iOS6+. Fixed these.
Fixed 2 more minor warnings
Merge branch 'fix77'
Merge branch 'arc'
Merge branch 'remIssues'