Fixed a bug in private message responses
Converted the YouTube plugin into a module.

Going forward I need to figure out how to dynamically load them.
This shouldn't be hard but I don't know how yet. TODO I guess.

- Removed unneeded stuff from settings_template.ini
Renamed youtube.py -> ident.py for funsies.
Added tests to YouTube ident module.

- Fixed a broken reference in docrobot because of earlier commit.
Updated README