[#365] fixed stop throwing an exception after completion

this was caused by the tween object trying to remove itself a second
time.
Fix for documentation
<br> on bindMouse doc string

Noticed when reading the bindMouse spec online :)
Merge pull request #410 from evinugur/master

<br> on bindMouse doc string
Documentation fix
Updating year to 2014
Merge pull request #450 from TheSisb/patch-1

Updating year to 2014