Revision 2067

Fixing a number of issues in the 0.0.1 version:

- removal didn't work, because gLExec 0.8 (and 0.7) no longer stays in cwd if
  chdir to homedir fails, but *returns* to cwd. If that fails (e.g. permission
  denied) gLExec does a cd to /. Hence securedir must in any case be 711 when
  trying to remove tmpdir. Furthermore the argument to rmdir and rm -rf must be
  absolute.
- adding -v option: version
- updating help to show all possible options, including -h, -f and the new -v
- fixing problem with options needing an argument, but not getting one: shift 2
  failed resulting in an endless loop.
- explicitly adding a path and having script figuring out the location of all
  the tools.
- adding variable for rmdir.
- changing one missing chmod into $chmod