Bad configuration options for SCAYT

[Alfonso Martínez de Lizarrondo]

The initialization has this code

oParams.customDictionaryName = editor.config.scayt_customDictionaryName;
oParams.userDictionaryName = editor.config.scayt_userDictionaryName;
oParams.defLang = editor.scayt_defLang;

if ( CKEDITOR._scaytParams )
{
	for ( var k in CKEDITOR._scaytParams )
	{
		oParams[ k ] = CKEDITOR._scaytParams[ k ];
	}
}

Problems:

scayt_customDictionaryName and scayt_userDictionaryName aren't documented anywhere.

editor.scayt_defLang isn't using the config object so it's harder to change its value. Also, while trying to test it I wasn't able to make it work (or at least, make it work as I expected)

The CKEDITOR._scaytParams object means that any such option is shared by all the editor instances, instead of being able to configure each instance in a different way. It can't be overriden also in a configuration file. It's also hard to know what can be used there. Luckily I was able to find that sLang worked and help this user: ​http://cksource.com/forums/viewtopic.php?f=11&t=15705

[WebSpellChecker.net]

patch is submitted in #5145

[Frederico Caldeira Knabben]

It's ok to indicate that this one is supposed to be fixed by another tickets, but it should be closed only after confirming the fix one the relative ticket gets closed.

[WebSpellChecker.net]

Completely addressed in #5287.

[Garry Yao]

Fixed at #5287.