Target document is not always available.

The mongodb odm documentation indicates that targetDocument is
optional. This was causing an undefined index notice when it was not
specified.
Merge pull request #365 from eymengunay/fix-guesser

Target document is not always available.
Update Resources/templates/CommonAdmin/NewAction/create.php.twig
Merge pull request #366 from cykus/master

Fixed messages in Resources/templates/CommonAdmin/NewAction/create.php.twig
Update composer.json
Update .travis.yml
Translation files updated: documentpicker
Document picker views added
Documentation updated: documentpicker
[Feature] Doctrine ODM document picker widget added
Merge pull request #367 from eymengunay/feature-documentpicker

[Feature] Doctrine ODM document picker added
[Features] Form theme add is now mandatory
Update Resources/views/Form/Collection/javascript.html.twig
Merge pull request #371 from cykus/master

Fixed messages in Resources/views/Form/Collection/javascript.html.twig
Fixing PR #367
Merge branch 'master' of https://github.com/symfony2admingenerator/AdmingeneratorGeneratorBundle

Conflicts:
	Resources/views/Form/fields.html.twig
Merge pull request #370 from sescandell/master

[Features] Form theme add is now mandatory
Cookbook in table of contents
merge