Implemented "contains" operator for Criteria expressions
[DDC-2655] Don't let getOneOrNullResult throw NoResultException
Merge pull request #791 from myclabs/CriteriaContains

Implemented "contains" operator for Criteria expressions
Merge pull request #780 from terite/DDC-2655

[DDC-2655] Don't let getOneOrNullResult throw NoResultException
Removed "minimum-stability" : "dev" from composer.json
Merge pull request #817 from mfdj/patch-1

Removed "minimum-stability" : "dev" from composer.json
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