Fix for VEP on non-human

Hopefully I've killed all the places where adaptors were being pulled in and put them all under _include_user_params

Tested on dog, cow and mouse.

Dog gives a funcgen-related warning on the logs as it doesn't have a funcgen DB, but it seems to still work OK. I figured this wasn't too bad as to avoid the warning would involve some more hacking.

You may want to revert some of the stuff that you put in this morning with the _give_POST_to_VEP method???

You'll need to push this to master too.