Change css render name

Wordpress sites suck in being targetted for exploits attacks. The less bots can learn from the source, the less vulnerable the site becomes. So removed the redux-output to options-output. Might need to remove all class references..  but still nobody should know what the system is running.
Merge pull request #438 from xtrasmal/patch-2

Change dynamic css render name. Good call. Thanks @xtrasmal.