commit changes from July 11 to July 16 the week that cvs.openacs.org was down, added concept of membership and membership pricing in dotlrn-ecommerce shopping cart various bug fixes and modifications to dotlrn-ecommerce
get dotlrn-ecommerce to install.oracle, move queries from tcl files into xql files, removed empty xql files, shortened view names particularly in dotlrn-ecommerce-membership-create due to oracle's limit on identifier names
added language catlogs, changes to patron page flow, custom ecommerce pages for transactions done by admin, add calendar view of courses, add instructor filter to calendar