Highlight installed scripts, until the window is closed.
Highlight installed scripts, until the window is closed.

Fixes #1138

Ventero/greasemonkey,the8472/greasemonkey,HasClass0/greasemonkey,HasClass0/greasemonkey,Ventero/greasemonkey,the8472/greasemonkey,Martii/greasemonkey,Martii/greasemonkey