[Fixes bug #738065] Remove selection after pasting into a new image
[Fixes bug #738065] Remove selection after pasting into a new image

Fenex/Pinta,jakeclawson/Pinta,jakeclawson/Pinta,Mailaender/Pinta,PintaProject/Pinta,PintaProject/Pinta,Fenex/Pinta,PintaProject/Pinta,Mailaender/Pinta