New config: store config on master
Rather than storing config into tags, the config is stored on
master:/etc/starcluster. This allows easier update.
Restored default logging + nfs
Fix commands
Update README.rst
Fixed style checks
Moved save_config_on_master earlier in the starting steps
Multiple subnets support
Updated the readme with the subnets changes
Added --dns-sufix option
Protection against dns-prefix + cluster names containing a dot
Merge branch 'vanilla_improvements' into datacratic_dev