Added kill method
Added support for timeout
Improved test
Added wait_for_exit parameter
Fix test http coordinated executor

(python getting executed separately from bash with a new process id)
Fix HTTPCoordinatedExecutor class

Add tests for HTTPCoordinatedExecutor
Merge pull request #2 from tomislater/fix-tests

Fix tests and HTTPCoordinatedExecutor class
Merge branch 'master' of github.com:mlen/summon_process

* 'master' of github.com:mlen/summon_process:
  ability to end subprocesses gracefuly

Conflicts:
	summon_process/executors/simple_executor.py