Cpyjava

Features:
- enabled use of java arrays

Features:
- enabled object arrays

New Features:
- setup.py support. "pip install <path to repository>" can now install cpyjava as a python extension
- java.lang.Comparable now used in richcompare
- decorator inheritance
- translation of java excpetion now includes the message
- added explicit cast function (to manually select an overloaded function)

various improvements :
- string deduplication
- decorators for tp_get/setattro and tp_call
- improved inheritance
- added test routines + automatic build testing