customise install script for better exception-/XfceTerminal-handling
customise install script for better exception-/XfceTerminal-handling

* switch from /bin/sh to /bin/bash, because of better array handling
* add 'license' to exceptions, which don't get linked
* integrate different target path for Xfce4 'terminalrc'

netzfisch/dotfiles-old,netzfisch/dotfiles-old