Move *_Elastic_Type to *_Elasticsearch_Type
Move CM_Search_Index_Cli to CM_Elasticsearch_Index_Cli
Move CM_SearchQuery_* to CM_Elasticsearch_Query_*
Rename CM_Search to CM_Elasticsearch_Client
Replace CM_Elasticsearch_Query_Abstract with CM_Elasticsearch_Query
Move CM_PagingSource_Search* to CM_PagingSource_Elasticsearch*
Make CM_Elasticsearch_Type_Abstract not extend Elastica class
Set INDEX_NAME to null initially
Check for INDEX_NAME
Fix empty host or port condition
Restructure constructure ordering
Remove unneeded indexName and typeName fields
Merge pull request #1149 from njam/issue-1149

Move search stuff to Elasticsearch/