feature #6172 move assets options from templating to assets section and add base_path documentation (snoek09)

This PR was merged into the 2.7 branch.

Discussion
----------

move assets options from templating to assets section and add base_path documentation

| Q             | A
| ------------- | ---
| Doc fix?      | yes
| New docs?     | no
| Applies to    | 2.7
| Fixed tickets | #6146

Commits
-------

2a905d8 small fixes for xml configuration examples
5d06eb5 document base_path option
cc12d7f change order of assets configuration options
61403e7 remove unused reference
5969b80 move packages and base_urls to assets section remove templating config from examples put anchor back
46156f4 put anchor back
cd0efed [WIP] moving assets version and version_format options under assets section

Author: weaverryan

book/templating.rst

@@ -1064,7 +1064,7 @@ being used and generating the correct paths accordingly.
 Additionally, if you use the ``asset`` function, Symfony can automatically
 append a query string to your asset, in order to guarantee that updated static
 assets won't be cached when deployed. For example, ``/images/logo.png`` might
-look like ``/images/logo.png?v2``. For more information, see the :ref:`ref-framework-assets-version`
+look like ``/images/logo.png?v2``. For more information, see the :ref:`reference-framework-assets-version`
 configuration option.
 
 .. _`book-templating-version-by-asset`:
@@ -1088,7 +1088,7 @@ if you are using Twig (or the fourth argument if you are using PHP) to the desir
         ) ?>" alt="Symfony!" />
 
 If you don't give a version or pass ``null``, the default package version
-(from :ref:`ref-framework-assets-version`) will be used. If you pass ``false``,
+(from :ref:`reference-framework-assets-version`) will be used. If you pass ``false``,
 versioned URL will be deactivated for this asset.
 
 If you need absolute URLs for assets, you can use the ``absolute_url`` function

cookbook/assetic/asset_management.rst

@@ -472,7 +472,7 @@ done from the template and is relative to the public document root:
     Symfony also contains a method for cache *busting*, where the final URL
     generated by Assetic contains a query parameter that can be incremented
     via configuration on each deployment. For more information, see the
-    :ref:`ref-framework-assets-version` configuration option.
+    :ref:`reference-framework-assets-version` configuration option.
 
 .. _cookbook-assetic-dumping:
 

reference/configuration/assetic.rst

@@ -50,7 +50,7 @@ Full Default Configuration
                 some_filter:                 []
             workers:
                 # see https://github.com/symfony/AsseticBundle/pull/119
-                # Cache can also be busted via the framework.templating.assets_version
+                # Cache can also be busted via the framework.assets.version
                 # setting - see the "framework" configuration section
                 cache_busting:
                     enabled:              false