Remove momentum reduction in CA_JUMPTHOK

Also add new multiability handling for it
Merge branch 'master' into next
Merge pull request #28 from wolfy852/master

Remove momentum reduction in CA_JUMPTHOK
SRB2 2.1.11 release
Merge branch 'next'
evil changes
Merge remote-tracking branch 'upstream/master'
S_music name variable access

Quick edit to give lua scripts the ability to access internal name of
the tunes added
Merge remote-tracking branch 'origin/master' into opengl-edit