We're using URLMapper, not Net_URL_Mapper
DirectMessage moved into a plugin, not done yet

We still have to move some API calls into the new plugin.
Simulation does not support plugins yet
DirectMessage API functions moved to plugin
UserActivityStream export of DMs moved to plugin
&$supported in CommandSupportedAPI event is boolean

not array as we specified here
MessageCommand moved to DirectMessage plugin
FavoritePlugin calls CommandInterpreter::split_arg

The last commit found a bug that a previous move of the FavCommand
into a plugin called $this in FavoritePlugin instead of the instance
of a CommandInterpreter class. Now that call is statically defined in
CommandInterpreter and appropriately called in FavoritePlugin.
Lost file with MessageCommand class.
Inline documentation updated to reflect on plugin move of DMs
Some unnecessary/faulty includes fixed in DM plugin
DirectMessage added to default plugins

I think the migration from core to plugin is done now for DMs.

This is required since we support the Twitter-based API by default,
which is implemented in many of the mobile clients etc. But you can
disable the DirectMessage for your instance of you wish, of course.