added a new script: send_targz.sh
the script sends an archive of a subdirectory through ssh to a remove server.
this saves a lot of boiler plate when you want to upload your module and test it on another machine.
bufhub: a misc device that allows the creation of clipboards
currently working:
        init/exit code
        creation/destruction of clipboards
not implemented:
        clipboard operations
there's a test for the features that currently work