Fix boot-url in advanced menu.

git-svn-id: https://svn.code.sf.net/p/freeghost/code/trunk@1787 71f96598-fa45-0410-b640-bcd6f8691b32
make the installer script actually inconspicuous so as to not have errors down the road.

git-svn-id: https://svn.code.sf.net/p/freeghost/code/trunk@1788 71f96598-fa45-0410-b640-bcd6f8691b32