EZS-26 - Implement redirection after a user finishes editing the content in the Content Edit form

https://jira.ez.no/browse/EZS-26

**Implemented:**
* [x] Custom redirection on publish action,
* [x] Custom redirection on close action,
* [x] Custom redirection on discard action,
* [x] Method to set next view service params when switching active view services.
* [x] JS unit tests
Given https://github.com/ezsystems/PlatformUIBundle/pull/106/files#r17171651, `_onCloseViewHandler` should be removed in this class as well, instead you should define a `_closeView` method which is the currently anonymous function that handles the `closeView` event 5 lines below.