factored out couchdb patient view code into a separate file
don't need underscore.js in views
integrated ad-hoc line tasks report into core
stop passing undefined fields to ucsv, add header to report
removing line tasks report (now in CouchDB)
add suggested filename for downloading line tasks report
don't freak out if include_docs is false
Merge pull request #57 from davidmarin/reports_in_couchdb

ad-hoc line tasks report now lives in CouchDB (fixes #26)