Don't spam me bro.
runner: Wait after SIGTERM.
Use PNG for beverage images, since they often have transparency.
api: Update whitelisted paths.

Issue #265.
Hide more stuff in embedded mode.
Fix stats page formatting.
Delete CacheLogger.
Use STATIC_URL in mugshot_box.
Add device link protocol.
v0.9.26
runner: Kill entire process group.

Issue #263.
v0.9.27