Added basic emailing capability.
Added jar "cache", jar only gets removed when a job is complete.
Improved IP address retrieval.
Merge pull request #33 from filinep/rewrite

A few enhancements (email, jar cache, ip address lookup)
Added random user selection for job distribution
Merge pull request #34 from filinep/rewrite

Added random user selection for job distribution
Gatherer fix and server output

Fixed naming of output files in the gatherer
Removed some prints in the server

Signed-off-by: Bennie Leonard <bennie.leonard@gmail.com>