Instead of an event-based workaround, set `unselectable` on IE8 UI buttons.
Correct conditions for calling `correctInvalidListNesting` in tridentPre7.
A custom styles example.
Theoretical improvements in code style for `.toggleClass`.
Changelog entry for #563.
Merge pull request #563 from wymeditor/issue_563

Unable to add/remove row/columns in IE8
Merge branch 'master' into issue_564

Conflicts:
	src/examples/index.html
jQuery notation style in .
Merge pull request #564 from wymeditor/issue_564

Unable to toggle list styling in IE8 when cursor is placed in list (cleaner fix)
Merge branch 'master' into issue_556

Conflicts:
	src/wymeditor/editor/editor.js
	src/wymeditor/editor/quirks/trident-pre-7.js