Examples: reformat and rewrite.
Podspec renew
Update README.md
Uncommented getSubscriptions selector
Merge remote-tracking branch 'origin/master'
Updated vkphoto object. Rewrited example.
Changed fields in VKUser
Update README.md
Update README.md
Added +forceLogout method for VKSdk. Changed display type to mobile
Fixed authorize controller for iOS 6.0
Added isExpired property
New authorization method for using in app view controller. Changed documentation
Changed example
Removed unnecessary protocol
Changed podspec
Merge remote-tracking branch 'origin/master'
Smart parsing
Rewrited errors for using NSError
Updated examples