Made a distinction between active and passive cmds

+ Active commands
    - One command per line. ex: !g half-life, !rtd.

+ Passive commands
    - URL parsing, logging, markov.

++ config.py
    - Handles the debug flag and reading of settings.ini.

settings.ini
    + Added Admin section for Admin hostmask.
        - No wildcard support.
    + Added quit message

youtube.py
    + Renamed ident.py back to youtube.py
    + Will not increase post count on priv msg

youtube_tests.py
    + Added a test to make sure PMs don't increase viewcount.