bug fix in GetAnswersUpForReview
bug fixes in GetAnswersUpForReview, GetReviewsForAnswer and AskQuestion.

In the live version the askquestion is changed to a get method for test
purposes only! this change is not a part of thit commit
Bug fix in returning Json, CreatedDate was never set
Comments of Simon processed
Implemented AcceptAnswer and DeclineAnswer.
Merge remote-tracking branch 'upstream/master'
Added IntegrationTest project.

Also updated namespace of service project.
Merge branch 'master' of https://github.com/SimonBorger/nl.fhict.intellicloud.backend into SimonBorger-master
Null pointer Error fix
Merge pull request #7 from daanvc/master

Null pointer Error fix
Processed comments by daanvc

Changed First to Single (a single object is expected) and changed Equals
to the == operator (comparing integers).
Merge pull request #8 from jorisvervuurt/master

Pull request for implementation of AcceptAnswer and DeclineAnswer.
JSON serializer hot fix, References geupdate
Merge pull request #9 from daanvc/master

JSON serializer hot fix, References geupdate
Implemented restfull service
Merge pull request #10 from daanvc/master

Implemented restfull service
I know the web.config is part of this commit but since there are 5 new services in the config file i think this will be usefull, Please don't overwrite your own config but copy the service elements
Now checks for empty and null values separately

ArgumentNullException is thrown when a null value has been passed;
ArgumentException is thrown if the string is empty.
Refactored test class name

Test class name now matches the name of the class that is being tested.
Added reference and updated test class name
Added unit test project

Includes tests for StringCheck and IdCheck (Validation.cs).