Make Output TextEdit readonly
Trivial change: Better code placement
Added ability to read & write settings to a config file

Settings which are read & written to config file are:
	Position of Joddial Widget
	Size of Joddial Widget
Added a checkbox on messagebox to prevent it from poping up again

A setting added to config file which allows user to prevent messagebox
from showing up in future.
(This messagebox appears when Joddial hides to system tray.)