Update Cocoapods version on README

Merge pull request handsomecode#79 from handsomecode/develop

Resolve build error with access modifiers

Merge pull request handsomecode#78 from handsomecode/develop

Update to v2.2.0

Update InteractiveSideMenu.podspec

Update library version

Merge pull request handsomecode#20 from handsomecode/develop

SideMenu version 2.0

Fix sample link