CYB-208 CYB-222 CYB-227

Deploy code after a push, once a cron job executes the deploy script
Each execution does at least a "git fetch", and does the deploy if there are changes.

* adds a bin/deploy.sh script to do the deploy (can be called by cron)
Merge pull request #135 from coyote/deploy_script

CYB-208 CYB-222 CYB-227