Merge pull request #1 from lixar/podspec

Add support for CocoaPods
Fixing example project files paths
[Update] ErrorKit (0.0.1)
Revert "[Update] ErrorKit (0.0.1)"

This reverts commit 47dc162ef267f2b776eaa6b634334fa6388cdc4d.
Fixed CocoaPods integration

- Defined macro for each component that gets enabled per subspec
- Added imports for required frameworks/libraries
- Removed warnings for missing frameworks/libraries