Support super columns for auto pagination

Although deprecated for consistency auto pagination for super columns can be supported
Fixing recursive serialization
Don't go all the way to Object.class
Adding more javadoc to astyanax-core specifically to the connectionpool.impl package
Merge pull request #357 from opuneet/add_javadoc

Adding more javadoc to astyanax-core
Merge pull request #349 from ztravis/master

Fix the recursive scanning of parent fields in AnnotatedCompositeSerializer
Merge pull request #346 from lc-nyovchev/patch-1

Support super columns for auto pagination