chore: update ckeditor build artifacts

This commit autogenerated with "./ck.sh".

Author: wincent

ckeditor/ckeditor.js

@@ -1,4 +1,20 @@
 SCAYT plugin for CKEditor 4 Changelog
 ====================
+### CKEditor 4.5.6
 
-The full changelog of the SCAYT plugin for CKEditor 4 can be found on our website under the [release notes](https://webspellchecker.com/release-notes/) section.
+New Features:
+* CKEditor [language addon](http://ckeditor.com/addon/language) support
+* CKEditor [placeholder addon](http://ckeditor.com/addon/placeholder) support
+* Drag and Drop support
+* *Experimental* GRAYT functionality http://www.webspellchecker.net/samples/scayt-ckeditor-plugin.html#25
+
+Fixed issues:
+* [#98](https://github.com/WebSpellChecker/ckeditor-plugin-scayt/issues/98) SCAYT Affects Dialog Double Click. Fixed in SCAYT Core.
+* [#102](https://github.com/WebSpellChecker/ckeditor-plugin-scayt/issues/102) SCAYT Core performance enhancements
+* [#104](https://github.com/WebSpellChecker/ckeditor-plugin-scayt/issues/104) SCAYT's spans leak into the clipboard and after pasting
+* [#105](https://github.com/WebSpellChecker/ckeditor-plugin-scayt/issues/105) Javascript error fired in case of multiple instances of CKEditor in one page
+* [#107](https://github.com/WebSpellChecker/ckeditor-plugin-scayt/issues/107) SCAYT should not check non-editable parts of content
+* [#108](https://github.com/WebSpellChecker/ckeditor-plugin-scayt/issues/108) Latest SCAYT copies id of editor element to the iframe
+* SCAYT stops working when CKEditor Undo plug-in not enabled
+* Issue with pasting SCAYT markup in CKEditor
+* [#32](https://github.com/WebSpellChecker/ckeditor-plugin-wsc/issues/32) SCAYT stops working after pressing Cancel button in WSC dialog