MultiSearch implementation
Fixed empty query issue
More multi search tests
Added support for error response in multi search
Extracted elasticsearch version into env var
Added 5.2, 5.3 and 5.4 php version to travis.yml
Added setSearchType method in Elastica_Multi_Search
Added createSearch method to Type and Index. Count request is preformed by calling Elastica_Search::count() method
allow_more_request_params
Merge pull request #291 from x8wk/allow_more_request_params

allow_more_request_params
Fix Setting test for elasticsearch 0.20.1
Update to elasticsearch 0.20.1 and memcache 2.2.7
Elastica_Connection introduced
Elastica_Request refactoring to extend Elastica_Param. Remove unused features
Add Elastica_Exception_Client to handle no connection exception. Enable iteration of not enabled connections
Implements callback function in case a connection is down
Create deprecated initClient method
Update to new elasticsearch download path (github does not allow download anymore)
Missing elasticsearch in elasticsearch download path added
Improve backward compatibilty trough param refactoring. Add test for connection.