Refs #465. Removed skinPath and stopped loading skin js/css via Ajax.
Refs #465. Add a console warning if the configured skin isn't found.
Refs #465. Removed configureEditorUsingRawCss.

Folks know how to use/include stylesheets.
Let's not make decisions for them and add complexity.
Refs #465. Removed the addCssRule and addCssRules methods.

Also removed the duplicate RDFA examples found in the test folder.
There's no need to maintain two almost-identical RDFA examples.
Refs #465. Documented the backwards-incompatible changes.

As folks file issues with use cases that require migration help,
we'll want to update the documentation with those cases.
Refs #465. Almost complete rewrote the customization documentation
Refs #465. Outlined a much-better documentation structure.
Refs #465. Removed some more unused skin/language loading constants.
Refs #465. Don't do an HTTP request to load a language file.

If the language isn't already loaded, display a console error
and keep on going.
Refs #465. Document some other code cleanup I didn't get to.
Refs #465. Include the language and skin js files in the build.

Also added the missing CSS to lots of examples.
Refs #465. Removed remaining usage of the "styles" option.
Refs #465. Removed the CSS parser.

Also removed the last references to editorStyles and dialogStyles
Refs #465. Removed a cssParser test. Tough to pass without a css parser.
Refs #465. Some fixes based on code review. Thanks Kyle.
Merge pull request #465 from wymeditor/issue_465

Closes #465. Stop loading skin js/css and language files automatically.