Add preliminary install.sh
Add git-up rubygem, and add remastersys repository

Remastersys repository should have been commited before, sorry!
Merge branch 'master' into install-karoshi
Complete first version of install.sh

All admin skel is stored in linuxclientsetup/admin-skel, so that needs to be
copied to ~administrator before remasters.

install.sh can now perform remasters, correctly cleaning up after itself once
done. It automatically adds and removes the karoshi-setup autostart links, as
well as getting the current version and website listed in README.md. Processor
architecture is determined using the output of `uname -i`, but x86_64 is
converted into amd64 for consistency with ISO naming standards. Not sure if
1386/i486/i586/i686/x86 needs to be converted also.
Add package upgrade line
Change install procedure a little, fixing bugs
Fix package logic in install.sh and add modular rubygems
Merge branch 'master' into install-karoshi
Add xmlstarlet to install-list
Use resolvconf to manage DNS settings

Removing resolvconf is a pain, and resolvconf is actually quite useful in
some cases. Instead of managing resolv.conf manually, we now rely on resolvconf
and just pass it information instead. Static network settings use a
'dns-nameservers' option in /etc/network/interfaces
Fix getting error status from apt-get inside subshell
Remove quiet flags to show progress indicators for apt-get
Fix return from subshell apt-get part 2
Enhance pre-installation configuration checks
Force symlink creation and fix general errors
Fix issue with read consuming while loop input rather than stdin
Correctly set password for administrator user and set default shell
Add administrator user to additional groups
More inclusive linux-*-generic remove filter, and remove gnome-screenshot
Change permissions on sudoers.d files to 0440