incorporate daveb's search for survey, add initial (poor) rss support, fix the one-survey url to work as a search target, make package_id and title propigate to acs_objects. bump to 5.2.0d2, someone who cares should make oracle work too
- Moving Malte's enhanced survey from the accidentally-created "oacs4" repository he created into openacs-4/contrib.- Malte's commit line was: "Added new survey module version for head."