Merge pull request #2675 from UtahDave/add_mysql_returner_docs

Add MySQL returner docs

doc/ref/returners/all/index.rst

@@ -14,3 +14,4 @@ Full list of builtin returner modules
     cassandra_return
     mongo_return
     redis_return
+    mysql

doc/ref/returners/all/salt.returners.mysql.rst

@@ -0,0 +1,6 @@
+====================
+salt.returners.mysql
+====================
+
+.. automodule:: salt.returners.mysql
+    :members:

salt/returners/mysql.py

@@ -3,7 +3,7 @@ Return data to a mysql server
 
 To enable this returner the minion will need the python client for mysql
 installed and the following values configured in the minion or master
-config, these are the defaults:
+config, these are the defaults::
 
     mysql.host: 'salt'
     mysql.user: 'salt'
@@ -11,7 +11,7 @@ config, these are the defaults:
     mysql.db: 'salt'
     mysql.port: 3306
 
-Use the following mysql database schema:
+Use the following mysql database schema::
 
     CREATE DATABASE  `salt`
       DEFAULT CHARACTER SET utf8
@@ -47,6 +47,7 @@ CREATE TABLE `salt_returns` (
       KEY `fun` (`fun`)
     ) ENGINE=InnoDB DEFAULT CHARSET=utf8;
 
+Required python modules: MySQLdb
 '''
 
 # Import python libs