docs: Add developer-tooling.rst

This part describes entirely optional tooling, so it makes sense not
to have it advertised too prominently. Move it to a separate page.
Signed-off-by: NAndrea Bolognani <abologna@redhat.com>
Reviewed-by: NDaniel P. Berrangé <berrange@redhat.com>

docs/developer-tooling.rst

+=================
+Developer tooling
+=================
+
+libvirt includes support for some useful development tools right
+in its source repository, meaning users will be able to take
+advantage of them without little or no configuration. Examples
+include:
+
+-  `color_coded <https://github.com/jeaye/color_coded>`__, a vim
+   plugin for libclang-powered semantic syntax highlighting;
+-  `YouCompleteMe <http://valloric.github.io/YouCompleteMe/>`__, a
+   vim plugin for libclang-powered semantic code completion.

docs/hacking.rst

@@ -322,19 +322,6 @@ background reading on the subject, on `Richard Jones' guide to
 working with open source
 projects <http://people.redhat.com/rjones/how-to-supply-code-to-open-source-projects/>`__.
 
-Tooling
-=======
-
-libvirt includes support for some useful development tools right
-in its source repository, meaning users will be able to take
-advantage of them without little or no configuration. Examples
-include:
-
--  `color_coded <https://github.com/jeaye/color_coded>`__, a vim
-   plugin for libclang-powered semantic syntax highlighting;
--  `YouCompleteMe <http://valloric.github.io/YouCompleteMe/>`__, a
-   vim plugin for libclang-powered semantic code completion.
-
 Libvirt committer guidelines
 ============================