Updated callback strings to comply with libpurple.
FIXES:
- Updated callback strings (replaced underscores with minus symbol).
- Now all UiOps callbacks are added using add_callback(type, name, func).
- Updated changes on nullclient-ecore.py.
- Added receiving-xmlnode example on nullclient-ecore.py.
- Removed deprecated nullclient.py
Signed-off-by: Bruno Abinader <bruno.abinader@indt.org.br>
git-svn-id: https://garage.maemo.org/svn/carman/branches/carman-0.7-beta2/python-purple@1359
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