remove jersey-json lib (not used)
add docs
Merge branch 'testing' of https://github.com/molgenis/molgenis into testing
fixes #188 (mref input broken after update to molgenisrequest)
fixes #190 (delete record functionality broken.)
add zip-of-csv's support
consider empty values to be null, preserve column names order
add test for zip files
add empty value test
add support for zip-of-csv's
Merge pull request #191 from dennishendriksen/testing

Multiparam bug fixes + small stuff