Updated to a patched version of CKEditor 3.6.3

Two WebKit regression bugs were fixed by reverting the commits:
- Pasting into a a CKEditor or hitting return caused scroll top to fire
- Unable to paste into a blank (no P tags) CKEditor instance as described by http://dev.ckeditor.com/ticket/8922
A little helpful documentation
Disable the SCAYT and context menu CKEditor plugins so we can use the native browser / OS spell-checker instead.
Append timestamp of last build date to ckeditor.js to get around caching
before settings always used STATIC_URL, now it will first check CKEDITOR_MEDIA_PREFIX which is useful because our admin has a different prefix than our normal static
Created new smartcopy plugin
Updated version number to 3.6.3
Re-ran ckpackager, added atlantic style dropdown options
Adds dynamic resizing ability to embeded local images.
Adds case for 404s and non-images.
Adds 'dynamic_resize' option to RichTextField.
Fixes some urlquoting edge cases.
Adds CodeMirror plugin to CKEDITOR
Updated README with dynamic_resize option.
Adds png to jpeg auto conversion.
Merge branch '3.6.3-fixes' into dynamic_rendering
Fixed typo in kwarg name.
Plugin: added atlantic pagebreak plugin based off of the built in 'pagebreak' button
Merge pull request #1 from fdintino/3.6.3-codemirror

Add CodeMirror plugin to CKEDITOR
Always load image during resize due to bug in PIL 1.1.7 (fixed in pillow)