Changes: use selection start/end for copy availability on QML
Changes: use selection start/end for copy availability on QML

RevBy: Jarno Malmari
Details: used to get the full selected text string.

Full, original commit at 29af04011c4e0b6ffa9361bf8be6f42f5de828ab in maliit-framework

perencia/inputcontext-qt4,maliit/inputcontext-qt4,maliit/inputcontext-qt4