Install Script: Add Widescreen patches to installer

git-svn-id: http://pcsx2.googlecode.com/svn/trunk@5786 96395faa-99c1-11dd-bbfe-3dabce05a288
Install Script: additional changes.

git-svn-id: http://pcsx2.googlecode.com/svn/trunk@5787 96395faa-99c1-11dd-bbfe-3dabce05a288