Merge pull request #1 from djw8605/q-config

Add support for multi-job Q and Configuration. I will do some testing and publish the new version to npm shortly.
updated the way spawn env were set - to my liking..
updating to 0.0.20
wrapped callback with nexttick to reset call stack for better error message something goes wrong inside user callback handler
Merge branch 'master' of https://github.com/soichih/node-htcondor
Fixing bosco_test.js to be more general
Adding small comment about options to the q() function