Clean up and refactor TextTool.cs.  The only non refactor changes are adding a hand cursor when dragging text and removing Ctrl-Backspace and Ctrl-Delete as these aren't standard text editing functions.
Clean up and refactor TextTool.cs.  The only non refactor changes are adding a hand cursor when dragging text and removing Ctrl-Backspace and Ctrl-Delete as these aren't standard text editing functions.

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