Set scroll velocity thresholds for menu reveal/hide.

Change-Id: I8d78ca98929ca38c49440b1236f2ad76f69b69e9
iOS 6 docs led us astray with NSTextAlignmentNatural. Fixed.

Change-Id: I211b30b65fb497fdc7b93e001cd9bbb6072525f5
Tweak 'last modified' text

* unbreak into a single line (better for i18n also)

Change-Id: I4debd797903051c671bdad57783e25f42e6e5e89
Made web view taps hide the toc instead of following links etc.

Change-Id: Ia801c51cd0c9584975688694fd0aedc67ea7fc6c
Merge "Made web view taps hide the toc instead of following links etc."
Fix long-press menu on links

Change-Id: Ib40c51289e38285d2775a0d90093de179e950713
License -> Terms of Use in menu

Change-Id: I83706fd16be962e4db22ff80871bbec48c0db713
Added splash screens.

Change-Id: I01b4dd928268a1eae768e5826bbf8f81f75046c5
Merge changes I83706fd1,Ib40c5128

* changes:
  License -> Terms of Use in menu
  Fix long-press menu on links