Issue #1761502: fix Error on comment edit
Issue #1676844: Fix getting node object on comment reply page
Issue #1566708 by bukem: AJAX preview comments.
issue #1541682: fix for 'changes are not saved'
find more generic selector
Issue #1463400 Fix Undefined index: ideal_comments_theme_registry_alter()
added @tsi's script to remove filter tips (see https://github.com/tsi/Less-information-about-text-formats )
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