It implements the client-side of an updated server API for searching questions - the client can now request a weighted ordering specifying the relative importance of text similarity, filters, upvotes, net votes, recency. A fairly arbitrary set of weights is now applied to the main ReadingPage.
It adds a link to 'my questions' from the hamburger menu, which simply retrieves all the questions written by this user. This uses a cut-down version of a new instance of the ReadingPage.
This PR does two separate but related things: