Xcode 5 Build Settings changes
Merge branch 'develop' of https://github.com/iMartinKiss/Block-KVO into develop

# By Martin Kiss (3) and Steve McKenzie (1)
* 'develop' of https://github.com/iMartinKiss/Block-KVO:
  Version bump in README
  Fix possible crash when removing observations on foreign object.
  Added a .gitignore.
  Invoke observation block for NSnotification right after calling the method
Merge branch 'develop'

* develop:
  Xcode 5 Build Settings changes