Default PRIVATE statements and PUBLICize some entries within MODULE sweeper and sweeperUtils
add VECTORIPOL sweeper option
added CASE(VECTORIPOL) in SELECTCASE(sweepType) block, and assign %sweep2D_prodquad to sweep2D_prodquad_P0_vectoripol.  Also stuffed this routine with sweep2D_prodquad_P0.  Modifications will be made on it in the commit to come
typo: sweep2D_prodquad_P0_vecoripol corrected to sweep2D_prodquad_P0_vectoripol, now with sweeper option 2 in the command line argument, it gives correct answer.
Merge branch 'jipuwang'