JSHint and JSCS fixes.
JSHint and JSCS fixes in tests.
Tests: Fixed HTML comparison on IE8.
Tests: Fixed unstable HTML comparisons.
Tests: commented out two cases because of #12474.
JSHint and JSCS in walker tests.
Fixed walker.invisible() which started returning true for <br>s.
Tests: More walker.invisible() tests.
Fixed walker.invisible() which should always return true for <br>s.
Tests: Ignored one case on IE8.
Changelog entry.
Merge branch 't/12423'
Added JSHint, JSCS and Grunt configs to files ignored by the builder.
CKEditor 4.4.5 API docs and changelog corrections.
Changelog correction.
Revert "Updated sample."

This reverts commit 50e365e2c61e6be1b7b02b5de4b7a3cbcc54d087.
Revert "Added automatically disabling maximize plugin when sharedspace plugin is present."

This reverts commit df1293de5ab6a577fdb19b219d934683d847bb90.
Reverted: Added changelog entry.
Merge branch 't/12163-revert'
It wasn't supposed to be editable.