Support for Regex questions
rename test function
#2009 local applicants only
Adds stringreponse support, tests

(Closes #1596) now that we have regex and string matches
Also includes bugfix for support of unicode xml_metadata input into
minidom
cleanup of some unnecessary calls
Fix test docstring
Merge pull request #2012 from Stanford-Online/jbau-regex-questions

Jbau regex questions
Merge pull request #2010 from Stanford-Online/jinpa-master-hiring

#2009 local applicants only
Merge branch 'master' of https://github.com/Stanford-Online/class2go into sef-2000-dglance-restapi