Merge pull request #48 from pererikbergman/master

Added OpenGL ES 1.x/2.0 screenshot support.
Refactored ScreenshotTaker and Solo
Added SuppressWarnings(deprecation) to scrollToSide and getScrollOrListParent
Check if renderer is null in wrapAllGLViews
Minor formatting in wrapAllGLViews
Minor assert message and javadoc updates in Clicker
Minor javadoc updates in Solo
Minor assert message updates in Asserter
Javadoc updates in Solo
Improved assertCurrentActivity()
More javadoc updates in Solo
Minor javadoc updates in Solo
More javadoc updates in Solo
Javadoc updates in Solo
Javadoc updates in Solo
Updated the javadoc of clickOnActionBarItem
Minor javadoc update in Solo
Changed by to By
Updated javadoc of assertCurrentActivity
Updated Javadoc of clickOnWebElement