Revert "Merge pull request #33 from llh1/51219449_fix_bulk_create_barcode_returned_json"

This reverts commit 761e8be0027c0b8ff524985522dbd8b297bbd76f, reversing
changes made to 7abb6de3e85357dc365bafbea5f9b69221a110fb.

Conflicts:
	Gemfile.lock
	lib/lims-support-app/version.rb