Test and fix IrcCommandParser
Adjust coverage filters
Improve, fix and cleanup the docs here and there
IrcBuffer/UserModel::sort(): ignore invalid columns
Add tst_IrcBufferModel::testQML()
IrcBufferModel::setConnection(): qFatal -> qCritical (not worth abort)
IrcUser/BufferModel::data(): remove dead code
Adjust coverage filters
Make uchardet the default encoding detection backend
Test IrcMessageDecoder
Merge tst_DbgOut to the respective class' tests
Make the bot example a bit less dumb

Use command line arguments instead of the .ini file and support
the following commands: ACT, HELP, NICK, JOIN, PART, QUIT, SAY.