Allow multiple times the uri parameter, returns HAL representation
Added some comments
Merge branch 'master' into multi-get-hal

* master:
  Added caching header, fixes #11

Conflicts:
	src/main/java/uk/ac/ox/it/skossuggester/resources/Get.java
Merge pull request #16 from ox-it/multi-get-hal

Multi GET + HAL representation