Offline Test cases with Android-RSS


RSSReaderOffline class added.

New test case added to show how to use this factory RSSReaderOffline.

A little refactorization has been done in RSSReader::load. This method has been divided into two helper methods. This refactorization avoids duplicate code in RSSReaderOffline

Indexation corrected.

A new copy of RSSTestReader has been added. This new copy uses Junit3


Signed-off-by: Javier J. <javierj@us.es>