* Create sidebar hamburger menu for mobile
* Improve sidebar UX and mobile menu
* Fixed sidebar UX bug where blue text breadcrumb didn't appear and fixed hover/focus styling
* Improved UX of hamburger by applying toggle animations
Common problem.
Quite visible if (i) a page's content fits within the browser window's height when the table of contents dropdown is closed but (ii) the content no longer fits vertically when the table of contents dropdown is opened. When this happens, a vertical scroll bar appears in the browser and the page's horizontal alignment shifts by the scroll bar width.
@frankmullenger I also noticed this in swipestripe docs :)
Universal increase in font size
Use same font as ss.org for consistency
Remove unnecessary visual noise (borders, box shadows, etc)
Use Google PrettyPrint syntax highlighter for improved readability of code sections
Fully responsive, with hamburger menu
Add "section" linking mode to menu items
Add masthead for breadcrumbs, introduction
Improved styles for notice/info/warning messaging
This major update changes the behaviour of the docviewer module to use a cached manifest rather than on demand. This allows us to simplify the URL matching and store 'nice' URL configuration rather than altering handleAction().
