fixes for CakePHP 3.6

Merge pull request #6 from challgren/deprecatedwarning

Fixing test and bumping cakephp version to 3.6

fixes belongstomany error

Fixes #4

1.0.0

This is a backward compatibility breaking version. See the README for more details.

But the update is really easy.

0.0.4

Test are added
Fixing bug when on multiple datalists one's value is selected from list an the other got a new value

0.0.3

travis build image added

0.0.2

Have a more descriptive README

Initial version

0.0.1

homepage added to composer.json