Tautologous Repy API definitions in repy.py

[choksi81]

At the time of writing (r6962), repy.py (code here) calls namespace.wrap_and_insert_api_functions (code here) with a nearly empty user context in order to let namespace set up the Repy API the user will use. repy.py however overwrites two definitions, getresources and createvirtualnamespace, and also adds a completely new one, getlasterror.

In the comments in repy.py, we have two places labelled "BAD" that seem to talk about removing those overwrites/adds as well as an import. In RepyV1, we only call namespace and don't overwrite/add things. My feeling is that we should remove the "BAD" stuff, and add getlasterror to namespace, but I'd like to have a second opinion on that.