reswig against 8241 and fix bugs with changed number of args to playAndGetDigits (note: exising scripts will need to be fixed to pass ONE less argument - see wiki for new syntax).  also, comment out hangup hook handler that was causing seg fault, that needs to be redone.  registering hangup hooks inscripts will no longer have any effect.

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@8244 d0543943-73ff-0310-b7d9-9358b9ac24b2