Encryption and logging

The encryption thread seems to work needs to be tested on an LFN.
The logging is currently broken because there is no call to set the
verbosity.  Verbose mode works with new function I wrote so we don't
have to check if (udr_options->verbose) repeatedly.
added prod/con to recv
cache coherence? no memcpy
supports -n aes-128|bf|des-ede3