[For 1.6] User option - Disable word filter

[pavemen]

sorry, i got side tracked with my real job. maybe Tuesday evening as I am swamped right now

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Updated for 1.4.13

Install worked on one of my setups, but not the other setup, but I think that there may be a template update problem during install. If you have an issue with the option not visible in the User CP, you will need to manually update the usercp_option template to add {$wordfilter_usercp}