Wrap the literate-coding elements in a container

Needed for the necessary left-right styling.
Added styles for the literate-doc directive
Extended Sphinx domain with formula directives and roles
Move helper functions into the class to allow future customization
Subclass to specifically handle documenting SLS files
Moved LiterateCoding directives into Salt domain
Merge pull request #9403 from garethgreenaway/develop

Adding ability to manage a system incrontab.  Change state identifier from path to a name variable.
Output warning if file cannot be found
Moving nzbget module to salt-contrib
Merge with upstream, add transport config options back.
Fix config options
Merge pull request #9404 from techhat/nzbget

Moving nzbget module to salt-contrib
Merge pull request #9402 from gravyboat/develop

Typo fix in troubleshooting index, and more additions to master/minion troubleshooting.
Fix undefined variable
lint fixes for incron
whitespace
Fix lint errors in tests
Alias cmd.watch state to cmd.wait
Hide cmd.watch state alias from docs
Merge pull request #9406 from cro/salt_transport

Salt transport