Remove arbitrary-key environment handling
Convert to argparse
Clean up the container in SSH test
Accept all drivers' options together
README fixes
Document the arguments
Ignore files Pylint won't analyze
Re-parse the command line arguments one the driver is known
Don't parse arguments for services not enabled
Use dots in namespaced arguments
Argument groups for services
Support passing environment as a hash
Rename test to avoid confusion
Support passing URLs as an array to Elasticsearch
Merge branch 'argparse'
Version bump
Test Python 3.4 on Travis