Merging changes of r15893. Get correct focused window.

git-svn-id: https://svn.code.sf.net/p/genoviz/code/trunk@15894 80d5a9c2-7d8c-4c9f-9369-4e03bca4d2bd
IGBD-404 Modifying the tooltips and adding some

git-svn-id: https://svn.code.sf.net/p/genoviz/code/trunk@15895 80d5a9c2-7d8c-4c9f-9369-4e03bca4d2bd
IGBD-404 
Updating tooltip for magnify glass

git-svn-id: https://svn.code.sf.net/p/genoviz/code/trunk@15897 80d5a9c2-7d8c-4c9f-9369-4e03bca4d2bd
Merge remote-tracking branch 'upstream'