V3 : Inline CSS support

[fredck]

With FCKeditor we're able to include the plain CSS for some configuration options directly in the configuration file, avoiding having CSS files being downloaded. This can be used by the skin and the content area CSS, for example. This feature is to be ported to V3.

[garry.yao]

Inline CSS sample skin

[garry.yao]

The attached sample skin file could be used for test.

[fredck]

The contents CSS, panels and dialogs are still missing.

[garry.yao]

The new patch introduce inline css support for all sorts of panels, menu, preview window, note that it also change the editor loading order to load skin before others (plugins, lang, theme), so plugins could easily reuse those inline styles defined in skin file.
Manual TCs added at :  http://ckeditor.t/tt/4463/1.html

[fredck]

Nice job. The loading order also looks good. Some small notes:

• Instead of having CKEDITOR.skins, let's have "editor.skin", which contains the definition for that editor instance. It will be simpler to use. In any case if we would use the CKEDITOR.skins object, we should add the "get" method to it, just like we have for plugins.

• The new CKEDITOR.fireOnce( 'pluginsLoaded' ) is wrong. It gives the sense that all plugin have been loaded, but the truth is that only the plugins for a specific instance have been loaded. This should be really an instance event only. For the skin.js needs, we could have CKEDITOR.on( 'dialogPlugin' ), which is fired by the dialog plugin file.

[garry.yao]

For the skin.js needs, we could have CKEDITOR.on( 'dialogPlugin' ), which is fired by the dialog plugin file.

The skin file may have dependencies on other plugin as well, even the theme, so a generic solution of firing an 'resource+type+ready' event is proposed in the patch.

[fredck]

The 'resource+type+ready' is a nice idea.

[fredck]

This feature is to be committed into the 3.1 branch, not on trunk.

[garry.yao]

Fixed with [4464] on 3.1.x branch.

[garry.yao]

Oops, seems my committed result is missing certain chunk from the patch, re-fix with [4470] and [4471].