JSLint fixes.
The oembed plugin.
Do not force http protocol.
Adjusted oembed pasting for IEs.
Minor codestyle fix.
Added ability to define multiple output strategies.
Added content caching for media embed plugin.
Media embed plugin regexps will tolerate extra content at the end of pasted link (that usually will be extra url query params).
Dev sample updated to use multiple output modes.
Added i18n for media embed plugin.
Added spinning circle while external content is loaded.
Plugin Oembed renamed to Media Embed.
Mediaembed members: getProviderByUrl, outputStrategies and pasteDecorator exposed to public API.
Added validation to dialog, to prevent unsupported oembed content urls.
Added configuration options for mediaembed plugin - providers list and providers whitelist.
Renamed config var oembedProviderUrl to mediaembed_url.
Added function to attach css stylesheets. By default linked stylesheet with gist highlighting.
Mediaembed plugin will now display a error message when oembed service will face issues.
Removed custom addCss() method and reused editor#addContentsCss().
Added data-oembed-error attribute to ACF.