Update version in setup.md

Use "~3.0" instead of "~3.0.2" to get version 3.0.3 and future minor
versions
Merge pull request #694 from notFloran/update-version-setup

Update version in setup.md
Use the new Search annotation

Use "FOS\ElasticaBundle\Annotation\Search" instead of "FOS\ElasticaBundle\Configuration\Search" in the repository manager.
Update the cookbook
Merge pull request #695 from notFloran/fix-search-annotation

Use the new Search annotation
add back fos_elastica.client tag that was removed in e78950ddb7b3e6c3ae402a042276dc81c4ee0dac
Update travis testing
Merge pull request #698 from merk/new-testing

Update testing
Merge branch '3.0.x'