Merge pull request #18 from xissburg/master

Region/bounds support
updated so that there are no analyzer warnings
Merge pull request #19 from echoz/master

Dealt with Static Analyzer warnings
Complete refactor: now uses ARC, NSJSONSerialization (making it iOS 5 only), new completion block, new SVPlacemark format.
Add administrativeAreaCode property to SVPlacemark.
Synthesize administrativeAreaCode.
Replace "bounds" with "region" (now CLRegion).
Fix Xcode 4.5 warnings.
Make all SVPlacemark properties readonly, add name getter.
Fix static analyzer warnings.
Add podspec.
Fix podspec.
Add MapKit to podspec frameworks.
Add CoreLocation to podspec frameworks.
Rename framework to frameworks.
Make podspec iOS only.
Remove the request timeout.