tentative support for stopping multiple tunneldiggers
Merge pull request #5 from sudomesh/master

tentative support for stopping multiple tunneldiggers
tunneldigger: fix startup when no hookscript given
tunneldigger: new config option enabled
tunneldigger: install default config /etc/config/tunneldigger
tunneldigger: build cmdline using function "append"
tunneldigger: check if all mandantory cmdargs are given
tunneldigger: fix coding style of stop()