Cleaned up some code, and updated an option title to be more clear on what the option is for.
added an option to allow those awaiting email confirmation and those awaiting email confirmation (from edit) access to the contact form if the use contact form permission for unregistered/unconfirmed group is set to no.
added an option to forum nodes to allow/not allow signatures per forum. Defaulted to allow signatures on install. The template modification removes the signature macro from the post macros template if no signatures are allowed, therefore the execution order is set to 99 as to not interfere with any other add-on that looks for the signature macro.