Improved history core data concurrency.

Change-Id: I46d1a3bff139f4aee1e9d050fc73c5cc47337510
Moved history, saved pages and page save buttons to "W" menu.

Change-Id: If9fc49f058b07db3177219e7e2315f48e0a4f5bb
Added sectionImage associations to core data store.

More concurrency updates.

Fixes for saved page deletions.

Added swipe to delete to history items.

Swipe to delete fixes.

Thumbnail grabbed from section image if thumbnail not found.

Added title to top of page.

Initial css styling.

Moved info box under lead section.

Change-Id: Ib634c5cd57431bd354249c902650bb79c1d647d4
Revert "Added sectionImage associations to core data store."

for alternate merge...

This reverts commit 52543733eebed685a9689fa1ae444c2ec10af7f3.

Change-Id: Idcfc7cbd23558590ae3ae59c6419008f7a6af249
Added sectionImage associations to core data store + TOC menu!

More concurrency updates.

Fixes for saved page deletions.

Added swipe to delete to history items.

Swipe to delete fixes.

Thumbnail grabbed from section image if thumbnail not found.

Added title to top of page.

Initial css styling.

Moved info box under lead section.

----

Table of contents with section images!

Presently TOC is invoked with a 2 finger tap - will probably change.

Fixed section div numbering bug.

Fixed "Loading remaining sections" message bug.

Can now track with precision html element locations both in web view space
and screen space. Even accounts for pinch zoom level!

Style fixes for overflow tables narrower than their parent elements.

Hide audio tags for now.

Change-Id: I480e36d53a36b1f8506e22e1f887f78cb7fd0a19
On appearance table of contents now scrolls to reflect onscreen section.

TOC now limits top and bottom cells from scrolling past midscreen.

Scrolls to last section after rotate.

Partial implementation of web view scale and skew to side when TOC shown.

Partial implementation of vertically stacked image layout.

Refactor and bug fixes.

Change-Id: Iaf96db1de2696ce6a10c76216215e0e4fab68a43
Merge "Added sectionImage associations to core data store + TOC menu!"
Merge "On appearance table of contents now scrolls to reflect onscreen section."
Bottom nav bar with back, forward and table of contents buttons.

Change-Id: Iad5793ab6bd11eee386c60017ad191fc65abff42
Merge "Bottom nav bar with back, forward and table of contents buttons."