Merge pull request #16 from VxJasonxV/nicecast-nowplaying-plugin

New Plugin: Nicecast Now Playing Logger
Thanks VxJasonxV in the README. Bump to v0.14.
Made the Mac 'simple' startup script a bit more user friendly based on the sort of support questions I get
Remove twitter.php - doesn't do 1.1 API.
Add twitter-php library to External
Update README for new Twitter lib
Switch out old Twitter plugin for new one.
Add IRCCat plugin
Fix crash when IrcCatPlugin notifies no track playing