NOJIRA Fix typo $vs_s is not defined

Assuming it's $vs_c
Merge pull request #143 from kehh/fixExpressionParser

NOJIRA ExpressionParser: Fix typo $vs_s is not defined
PROV-1026 Fixed broken export mapping uploading
PROV-1010 Add option to support browse on objects without a current location
Merge branch 'develop' of github.com:collectiveaccess/providence into representationPaging