v4.5.9.9 release

v4.5.9.9 had three bug fixes.

Significant defects addressed

Corrected the following issues pertaining to preview-to-edit:

• Editing a rich-text field in the preview pane caused browser crashes or slowness.
• Clicking on a particular field in preview-to-edit redirected editors to a different field in the content edit form.
• Scrolling in the preview pane did not extend to the bottom of the pane.