added tooltip method SetOffsetX(offsetx)
added tooltip method SetOffsetY(offsety)
added basic clipboard support for the textinput object (0.9.0 only)
fixed text object width issues
fixed an error caused by pressing a function key while a textinput
object was focused
fixed the tooltip object not setting the state of its text object
cleaned up the tooltip object
modified textinput:RunKey to account for changes in the 0.9.0 api