== Result Release Date ==
Refer to ticket #363

== Requirements ==
The result release date should sperate from evaluation release/close date 

* Instructor can set result release date when creating an event.
* Student can view result after result release date

== Implementation==
* function studentViewEvaluationResult() in evaluation_controller will redirect to index page, if current date is not in range of result release date


=== Database ===
Added result_release_date_begin & _end fields to event table.
Check attachment for dumping