Give feedback to the user when /radium is performed in an invalid destination instead of erroring out.
Detect message from ZNC's privmsg module and behave gracefully
Merge pull request #447 from xlexi/master

Changes to /radium
Merge pull request #448 from cmsj/master

Detect message from ZNC's privmsg module and behave gracefully
Updated installer
Apply logic of #448 to createPrivateMessage: — also do not post notifications for these messages.
Move history playback so that it is first in the queue
Return self for nicknameFromHostmask: so that server names can be used if it is not host mask.