add new task :reconf for local re-generation of the building scripts

because existing libcdi/autogen.sh

net-ssh library has some features missing and caused troubling handling
the .ssh/config setups. these work perfectly from the command line but
not when using them via the net-ssh interface.

althouth the interface is nice to use, I need password-less access
configures via .ssh/config - without additional problems

is a "CC" key set in the config - everything else is
just host info, which can be used by user-defined tasks

the popen seem to left out things when calling 'cat config.log' locally