TextArea: Added showCursor() function, faster cursor flash, fixed flashing cursor positioning.
TextArea: Added showCursor() function, faster cursor flash, fixed flashing cursor positioning.

svn path=/trunk/libavg/; revision=6641

yyd01245/libavg,libavg/libavg,scotty007/libavg,yyd01245/libavg,yyd01245/libavg,th3infinity/libavg,yyd01245/libavg,th3infinity/libavg,scotty007/libavg,scotty007/libavg,hoodie/libavg,hoodie/libavg,scotty007/libavg,libavg/libavg,libavg/libavg,th3infinity/libavg,libavg/libavg,hoodie/libavg,hoodie/libavg,th3infinity/libavg