Replace message formatting code

- Support for italics.
- \x0F now resets all formatting codes (Issue #45).
- All formatting codes now output <spans> instead of <b> and <u>.
Merge pull request #206 from M2Ys4U/format

Replace message formatting code
Client: SoundManager2 lib
isQuery() method on model_panel
Highlight sounds
Mute message alert sounds option
Allowing * in nicks for ZNC *status nick
Merge branch 'development' of https://github.com/prawnsalad/KiwiIRC into development