[ZendSearch] Catch "non-wildcard characters" exception and return 0 results
Merge pull request #15 from massiveart/bugfix/non-wildcard-characters

[ZendSearch] Catch "non-wildcard characters" exception and return 0 resuts
[TestAdapter] Test adapter now passes adapter tests

The test bundle now passes the same integration tests as the
other adapters
Merge pull request #16 from massiveart/feature/test-adapter

[TestAdapter] Test adapter now passes adapter tests
Initial ElasticSearch support

Works to the same degree as the ZendSearch implementation
todo: Test integration of Elastic
Enabled elastic search on travis
Adapted tests