Enhancement for random Id of elasticsearch if an entity does not have one
Basic SortBuilder Support with SearchQuery
Updated Licence Information and Authors
Update README.md
Update .gitignore

Ignore project files created by Eclipse
Upgraded to elasticsearch version 0.20.5 release
fixed bug for page size
Merge branch 'master' of https://github.com/BioMedCentralLtd/spring-data-elasticsearch

Conflicts:
	src/main/java/org/springframework/data/elasticsearch/core/ElasticsearchTemplate.java
	src/main/java/org/springframework/data/elasticsearch/core/query/SearchQuery.java
	src/test/java/org/springframework/data/elasticsearch/core/ElasticsearchTemplateTest.java
* Ignore ES data directory