UI: Statusbar: Hide the line,col and selection widgets when it's not applicable
* collapses the widget if it's not an editor view

(integrated from komodo (trunk) change 84321 by toddw)

git-svn-id: http://svn.openkomodo.com/repos/openkomodo/trunk@14291 b87d16e7-d29f-4ee1-b5ec-817d645d335f