TinyMCE: add Shane Tomlinson's linkautodetect plugin so typed URLs get linked for...

TinyMCE: add Shane Tomlinson's linkautodetect plugin so typed URLs get linked for you, fitting expected user behavior better. (IE apparently already does this; plugin adds similar behavior for other browsers.)

Plugin source: http://sourceforge.net/tracker/?func=detail&aid=2770218&group_id=103281&atid=738747
Source JS compressed manually with jsmin.

Note: the link detection doesn't match StatusNet's internal link detection right now. URLs with funky chars, especially like Wikipedia style ones, will often not automatically catch. (But you should still be able to manually link them.)