(enketo-core) test forms added
strip namespaces from instances to be edited, closes #280
corrected check for validity of XML submission sent to /instance endpoint
show error if form requires encryption of records, upgraded XSLT and enketo-core
close button in feedback bar corrected
upgrade enketo-core
added missing semi-colon
Merge pull request #682 from MartijnR/master

editing fix for instances with weird namespace prefix, added warnings for encrypted forms and load exceptions
Merge pull request #683 from SEL-Columbia/master

editing fix for instances with weird namespace prefix, added warnings for encrypted forms and load exceptions