#1 Restriction to mongo collection

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tanja wants to merge 4 commits from tanja/restriction_to_collection into tanja/master

Author	SHA1 Message	Date
tanja	316f568a5c resolved conflicts: added deferenced schema	5 years ago
tanja	a975d9151b change in ParseJsonSchema	5 years ago
tanja	62e0527dec fixed a typo	5 years ago
tanja	2d8a0954db added restriction to a mongo collection to a constructor	5 years ago