Cleaned up the class interface.

Using properties instead of instance variables.

Changed delegate method name.
Changed delegate name to make more sense.
Updated example
Modified project structure
added some useful comments
Added the possibility to set an UIWebView as the content.
Modified project directories' structure.
Modified Images and Structure.
Fix image urls.
Modified example.
Added podspec file
Added LICENSE and modified podspec
Added installation guide.
Scroll to top when the user touches the status bar.
Merge pull request #5 from frankdilo/master

Refactored code and added UIWebView suppport