Refactoring: gns.service: pep8
Merge pull request #57 from nikicat/master

Dockerfiles added
Added meters support
Added metrics: gns.events_counter and gns.jobs_number
Merge pull request #58 from mdevaev/metrics

Added some metrics
setup: fixed raava version
Merge pull request #59 from mdevaev/metrics

setup: fixed raava version
Optional config directory, verbose exceptions
splitter, worker, collector: process --help
Refactoring gns.plugins: pep8
gns.service.init(): print short message and exit when configuration is incorrect
test_flow: Fixed subprocess.Popen() call
gns.service: disable validation for core.rules-dir
gns-reinit, gns-fetch-rules: replaced --do-it-now RuntimeError to argparse logic
gns-api: fixed incorrect usage of WSGI interface -> fixed objects leak
Merge pull request #63 from mdevaev/api-memleak-fix

gns-api: fixed incorrect usage of WSGI interface -> fixed objects leak
Merge pull request #61 from mdevaev/test-flow-fix

test_flow: Fixed subprocess.Popen() call
gns.service: yaml.load takes stream
gns.service: verbose messages in _load_configs()
Merge pull request #60 from mdevaev/optparser-fixes

Optparser fixes