Added 'stop' operation to programatically stop an express server
Added 'stop' operation to programatically stop an instanciated an instance of spawned server. Enhanced the README file.
Enhanced the README file.
Merge pull request #13 from rogah/stop-operation

Stop operation
Merge pull request #12 from x-cray/master

Add new option description to README, fix code to match original style
change version to 0.1.2
Fix parent process environment propagation to child