Track and report on the idle queue where available

Closes #1 / https://github.com/OmegaPhil/kvirc-xdcc-bot-stats-script/issues/1
Fix %idleQueuesText determination
Move all aliases into internal namespace as none of them are for normal users in the typical script sense
Update documentation
Send useful message to channel on trigger if no bots are available
Fix typo in idle queue stats reporting
Version 0.3