Merge pull request #43 from bdolor/dev

removing problematic classes on epub import, for cleaner pdf export
Updated jQuery plugins, changed JS to try and speed up catalog load times
Try to minimize catalog flickering
Run equalizer plugin after mixitup, maybe improves flicker?
Reduce flickering, final lap
Integrated post type icons for new dashboard icons; initial color scheme.
Replaced home icon with book icon in admin menu.
New web font PB icon, courtesy @nudgeD.
Completed preliminary 3.8 UI updates.
Ticket #955, chapter types. Register taxonomy, insert three generic chapter types, create chapter_type function that fetches types for export.
Version 3.8 requirement.
Further adjustments to chapter types. Classes now added to webbooks. Activation functions in place.
Export templates.
Added front matter, back matter and chapter type classes for TOC.
Tweaked themes page CSS.
Introduced new generics shortcode.
Less jarring background for the modal support box.
Allow more complex generic short codes based on $key => $value pairs.
Fixed bug with textbox shortcode.
Fixed export issue with #955.