Allow moving the cursor to a specified position

[amlajmi]

A Java method to automatically position the cursor would be great (issue n°6 reported in #32)

[jabiercoding]

Maybe this is already supported with the recent setSelection method of BasicText.java

[ulrichobjectsecurity]

Quick feedback: I just tried setSelection after setting the text but the cursor does not move there. It does something through because if I set values larger than the text string, it complains. (P.S. I'm still on DSLforge 0.9)