Always give saltenv argument highest priority
Adds master module
Caches loading of modules
handling lack of fstab as not-error
added yaml dumper that renders OrderedDict to YAML map
On systemd hosts, notify systemd when master is started
added strick package name matching flag, skip_suggestions
code cleanup
lint whitespace fixes
lint whitespace
lint fix RaetError.__str__
lint - Undefined variable 'CalledProcessError'
lint whitespace
lint - __init__ method from base class 'Exception' is not called
comment lint
lint - Unnecessary parens after u'if' keyword
lint -  Unnecessary parens after u'return' keyword
whitespace lint
Add backups_enabed option to Digital Ocean create().

- Group backups_enabled and private_networking, the two binary options.
- private_networking now absent if excluded rather than 'false'.
- Deal with non-binary arguments explicitly as other providers do.

Digital Ocean profiles can now take 'backups_enabled: [True|False]'. (As
of Jan 2014 this option must be specified on instance creation and can
no longer be enabled for already-created droplets, so it's fairly
necessary.)

An incidental change is that private_networking won't default to False
if not specified - by salt-cloud - but that is still the provider's
default, and where the default should be coming from if a profile isn't
explicit.
Add private_networking and backups_enabled options to docs.