Fix #433

If the doctor managed to leave the psych before an Elvis patient was
finished redressing then an error would occur and the patient would get
stuck.
Merge pull request #435 from Lego3/fix_psyc_room_staff_error
Bump SAVEGAME_VERSION for 0.40-rc3
Remove outdated LuaJIT 64bit check

Removed an outdated check for LuaJIT 64bit which states that a 64bit
version is not available. This is no longer true as a 64bit version of
LuaJIT is now available.
Merge remote branch 'remove-outdated-luajit-check' into rebased remove-outdated-luajit-check