add initial lookup action
Merge branch 'cake3' of git://github.com/FriendsOfCake/crud into cake3

* 'cake3' of git://github.com/FriendsOfCake/crud: (40 commits)
  Changes items to entities in afterPaginate docs.
  more tests
  fix undefined indices for actions and listeners
  more phpunit code coverage ignore
  more phpunit code coverage ignore
  fix phpcs
  fix exception class for latest cake3
  fix tests
  Revert "Merge branch 'master' into cake3"
  Revert "Revert "some API tests for AddAction validatinos""
  Revert "some API tests for AddAction validatinos"
  some API tests for AddAction validatinos
  some API tests for AddAction
  fix broken test
  fix phpcs errors
  more ignores from phpunit
  remove all @covers annotations
  exclude dirs for code coverage
  add coveralls .yml
  more travis
  ...