closes#180, make all contextual menu export/create bibliography options work right
also:
- add Chicago Note style output
- unregister RDF data sources from cache after import
references #178, changes to various date fields
- updates CSL to work with the latest schema. we can now (almost) generate completely valid APA style. the only issue is that there's no syntax for specifying short forms for page and creator type labels.
- updates scrapers to use date field rather than year field.
- removes now-unnecessary translation engine code pertaining to year field.
closes#4, Make printable version
- moves functions for creating and deleting hidden browser objects to scholar.js (from ingester.js), since these are necessary for printing as well
- allows saving bibliography in HTML or printing bibliography. style support is not yet complete (pending finalization of 0.9 version of CSL specification).
add Scholar.Cite and Scholar.CSL for parsing items into a bibliography using CSL. unfortunately, the output is not very good at the moment, and the format likely needs some changes, but I'm working with a few other people on getting it to that point.
