Merge in @juliocesar's work

https://github.com/podio/jquery-mentions-input/pull/53
added documentation for the new onCaret
Merging in the error caught by  Raven24

https://github.com/podio/jquery-mentions-input/pull/44
Adding in the Triggers from johnfrederik

https://github.com/podio/jquery-mentions-input/pull/43
Merging in ryanramage's multiple triggerChar support

https://github.com/podio/jquery-mentions-input/pull/8
fixing some errors.
Adding a class to the mentionItemHighlight
Looks like we had some weirdness calling things trigger and triggerChar. Fixed.
Removing usage of jQuery.data which auchenberg doesn't want.

see:
https://github.com/podio/jquery-mentions-input/pull/7#issuecomment-36499
64
adding more test people.
TODO allow the plugin to copy the styles of the textarea
clean up
Adding more documentation. Also removing copyStyles.
working through some weird display stuff.
this display thing is confusing me.
ctrl+z
screw it, inventing my own use for it.
ctrl+z
try again
think i found it