Fix for core/editor test case

[Artur Formella]

test_config_inpage from core/editor.html fails because of SCAYT plugin:

beforeInit : function( editor )
{
	// Register own rbc menu group.
	editor.config.menu_groups = 'scayt_suggest,scayt_moresuggest,scayt_control,' + editor.config.menu_groups;
},

Sometimes it works because of the random loading order. My idea is to disable this plugin in config.

Test case:

http://nightly.ckeditor.com/latest/ckeditor/_tests/core/editor.html

[Artur Formella]

Easy to reproduce in FF3 with enabled cache.

[Frederico Caldeira Knabben]

I'm not able to reproduce it with FF3. It's not passing in IE7 though, but the patch is not fixing it, and it's actually making another tc to fail.

Other than that, as a side note, for such kinds of changes it's always good to add a comment explaining the reason for such thing in the code, possibly including the ticket number. In this way we understand why the scayt plugin is being removed.

[Garry Yao]

We should temporarily disable SCAYT for the whole test suite.

[Garry Yao]

Fixed with [4029].