[pkg-fso-maint] latest changes to install.sh

[Steffen Moeller]

Hello,

I have done some cosmetics to the install.sh script

 * adding --bootstrapper as an option to select between
   (c|)debootstrap
 * introducing regular expressions to check for sensible
   value for --bootstrapper to be added
 * add Perl to binaries to check for when using deboostrap
 * allow zhone to fail being installed and don't add it
   to xsessions, then

My previous problems to boot have repaired themselves
by executing ./install.sh uboot, once.

X starts, the stalonetray appears with the same set of icons
in the lower left, but everything is just dead.

No USB, no keyboard, no buttons.

Suggestions and comments are welcome.

Steffen