- cck check the allowed node references + overloading warning #461602

  - patch by @CkPoMHbIu removed an error on deletion issue #624172
  - patch by @agileware provides update support by implementing batch api issue #805244 and the delta count patch in issue #805244
  - wrong delta count fixed #672732
  - checkbox length issue fixed #558612
  - php foreach error fixed #811738
  - doubling references issue #800054 fixed
  - php notices issue #917236