As long as anyone can remember, hunting on Sundays has been prohibited in Pennsylvania.  A bill in the state Senate may change that.  The bill's main sponsor, Senator Jim Brewster, says compromise has been built into the legislation.   It would allow hunting on a limited number of Sundays during regular hunting season, not all Sundays.  Harold Daub, Executive Director of Hunters United for Sunday Hunting (HUSH), is watching the progress of the bill that's now poised for consideration by the full Senate.