Calculate Echo value of things that sell for non-Echo items

There are a few items that sell for things that aren't Echoes but can themselves be sold for Echoes: for example, Memories of Light sell for 25 Cryptic Clues apiece (so an MoL is ultimately worth €0.50). This update looks through the character's sellable items for the special cases we know about and adds their Echo value to the total.

Support smaller screens

This update checks for an active Bazaar tab in the page footer (and incidentally adds support for Meticulously Altered Stockings in the net-worth calculation).

Prevent negative reserves

Reserves are now clamped to non-negative values.

First publication-ready release

3.1.11

Tagging version 3.1.11 3.1.11

Don't null out reserve/target if user cancels update

Previously we were accepting the null return value from a user-cancelled window.prompt call, which got coerced to 0 when dispatching + persisting the updated reserve or target value. Escaping out of a prompt should now leave the existing reserve/target intact.

Firefox-compatible release

3.1.7

Update package.json for binary release

Upload binaries

3.1.4

Prepare for public consumption