This commit successfully builds ejabberd-15.11.
    
    This commit will successfully build ejabberd-15.11. It depends on
    a build of erlang-p1_sip that just got built in Rawhide, so it will
    not build in Koji until tomorrow.
    
    There is a lot of commented code, most notably a lot of former
    patches that no longer apply. We will need to review these patches
    against the upstream changes between 14.07 and 15.11 to determine
    whether they are still needed, and we will need to recreate them if
    so.
    
    I intend to perform a lot of cleanup in this spec file in the
    coming weeks and months, but I wanted to commit as is since this is
    the first state I've gotten it to where it builds successfully.