bin/bitbake:

bin/bitbake:
    -Do not add handlers again. It is 'fast' enough
     to iterate over them in the BBHandler do not
     add them in bitbake again.
     This temporarily breaks the cache - which
     will be fixed shortly

lib/bb/event.py:
    -Have a data structure that operates faster on
     lookups
    -Change register/remove to take a 'name' parameter

lib/bb/parse/parse_py/BBHandler.py:
    -Update to the new event.register syntax