DATAES-128 - After release cleanups.
Completion support - added mapping code
Completion support - fixes
Completion support - added mapping tests
Completion support - clean up
Finally working with our in-house infra-structure.

Merge branch 'master' of https://github.com/MewesK/spring-data-elasticsearch

Conflicts:
	pom.xml
	src/main/java/org/springframework/data/elasticsearch/core/MappingBuilder.java
	src/main/java/org/springframework/data/elasticsearch/core/completion/Completion.java
	src/test/java/org/springframework/data/elasticsearch/core/completion/CompletionEntity.java
	src/test/java/org/springframework/data/elasticsearch/core/completion/CompletionEntityBuilder.java
	src/test/java/org/springframework/data/elasticsearch/core/completion/ElasticsearchTemplateCompletionTests.java