README: added more slogans
Merge pull request #2 from nikicat/master

added get_tags function; show image id in status
changed options format for config loading
refactored settings loading from resources
utils: more logs for nova_client
entities: load text/template files from resources
entities: added YamlFile
entities: migrate to structlog
actions: removed deprecated load_python func
entities: pep8 fix