workspace: move restore of window size and positioning into it's own function
* call it using a setTimout, as it needs to run after the window.load event

(integrated from komodo (trunk) change 83433 by toddw)

git-svn-id: http://svn.openkomodo.com/repos/openkomodo/trunk@14122 b87d16e7-d29f-4ee1-b5ec-817d645d335f