Fix runtime error on deleted cpp obj

(this can happens because the timer call us back just after the
widget has been deleted, while other modes are being uninstalled)
Try to fix issue pyQode/pyqode.python#28

I should use 'localhost' on every platform (works fine on ubuntu gnome 14.04 with python 3.4)
Prepare doc for version 1.3.2
Bump version to 1.3.2
Finish 1.3.2