When creating ltsp image, write an image name to
/etc/ltsp/this_ltspimage_name.
Rename "app_bash" module to "bash".
Use /etc/ltsp/this_ltspimage_name for bash prompts as well.
Try image build without -no-progress (I know the logfile
gets messy, but it is kind of nicer this way).
Change colors in bash prompts, the grey was a bit problematic
with mouseovers.