There are many `.. code-block: yaml` definitions that should really
be `.. code-block: jinja` definitions. This commit cleans up some
of those and removes warnings like these from the doc build:
```
WARNING: Could not lex literal_block as "yaml". Highlighting skipped.
```
* Remove :members: from fileserver docs pages
These functions can never be invoked directly from the CLI, so it is
pointless to include them in the documentation.
* Rename section
* Add docs page clarifying how to get files from different environments
* Add reminder that file_roots can be specified for masterless salt
* Link to the new environments page from the states tutorial
* Add information on pulling reactor configs from non-base environments
* Add examples of querystring syntax to cp module
This completes the documentation audit begun in cf365f7, using proper
backticks and :strong: tags to emphasize text, converting groups of
shell commands to bash code-block sections, etc. This also replaces the
use of \* with the easier-to-grok '*', which will hopefully reduce
confusion among new users.
