New EHM wiki hosting

We have now retired the old MediaWiki section of the website as it was a pain to maintain. Our wiki articles are now hosted on the TBL GitHub wiki which can be accessed here: https://github.com/archibalduk/ehmtheblueline/wiki or https://www.ehmtheblueline.com/wiki

Our repository on GitHub also hosts various EHM-related documents including game manuals and database structures. You can find it here: https://github.com/archibalduk/ehmtheblueline

The original MediaWiki site can still be accessed via the Wayback Machine at Archive.org.