Merge remote-tracking branch 'upstream/release-6.2' into release-6.2

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Fixed Stories:
1.Added support to add Multiple answers question as resource.
2.Added support to play Multiple answers question in player.
Navigation confirmation functionality partilay impletmented
Merge branch 'master' of https://github.com/shivalinga/Gooru-Web into release-6.1.5
Merge branch 'release-6.2' of https://github.com/Gooru/Gooru-Web into release-6.1.5
Merge pull request #24 from chandrasekharv/release-6.2

Display question count for each collection in the collection-search results
Implemented Navigation confirmation popup:
when user navigation the resource with out submiting the answers
this popup will dispaly.
Implemented create star ratings for the resources.
Resolved the merge confilcts.
Merge pull request #25 from shivalinga/master

MA Question type and Navigation confirmation popup
Merge branch 'release-6.2' of https://github.com/Gooru/Gooru-Web into release-6.2

Conflicts:

src/main/java/org/ednovo/gooru/client/mvp/play/resource/body/ResourcePlayerMetadataUiHandlers.java

src/main/java/org/ednovo/gooru/client/mvp/play/resource/body/ResourcePlayerMetadataView.java

src/main/java/org/ednovo/gooru/client/mvp/shelf/collection/Collection.css

src/main/java/org/ednovo/gooru/client/mvp/shelf/collection/CollectionCBundle.java

src/main/java/org/ednovo/gooru/client/mvp/shelf/collection/tab/info/CollectionInfoTabView.java

src/main/java/org/ednovo/gooru/client/mvp/shelf/collection/tab/info/CollectionInfoTabView.ui.xml

src/main/java/org/ednovo/gooru/shared/util/MessageProperties.java
Merge pull request #27 from VinRudramurthy/release-6.1.5

Created user ratings, functionality.
Expiring the gooru session token when a user is idle for 24 hours.