Added base architecture for new frames
Added NestedFrame logic
Revert "Added NestedFrame logic"

This reverts commit 1690e84f81d8fe4103d21855cbc56cc164c8a992.
Basic implementation of frame categories
Implemented missing frames
Fixed a little bug in createFrame
Fixed some python3 errors
Various intermediate fixes for Frame, disorganized
Provided a construct function for each frame type
frame.sender and frame.receiver
Cleaned up old address/unpack/frametype semantics
Fixed various bugs in frame creation/transmission
Fixed everything but DTA issue in py33
Added tests for frame.registration and frame.base

Also fixed some minor bugs in those modules.
Fixed DTA erroneous testing
Py33 tests finally succeed!
Fixed class decorator usage for py25 compatibility
Merge all changes but the ones for py2.5 from Philip
Fixed a little error in a test for frame.registration
Added missing tests for ejtp.frame