Do not fail to install the script if just the @icon fails to download.
Do not fail to install the script if just the @icon fails to download.

Fixes #1793

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