v0.8.1

Changelog

fbbf87d cleanup: remove a stowaway file (#1542)
87ad7df developing: specify kustomize version (#1519)
0c61d97 engine: fix a bunch of bugs around live update where we needed both nil checks and Empty() checks (#1539)
fa97144 hud/web: surface tilt forward url in web UI [ch2294] (#1538)
7471f9e hud: ctrl+D dumps engine state to a temp file (#1534)
0c54972 internal/build: print logs for errors in all cases (#1523)
9ce987d model: move some functions for working with lists of targets to the model package (#1543)
64fdfce model: new matcher that matches on either exact match of child of given paths (for better tiltfile for Sail) (#1521)
69c34fe sail: create new room via http endpoint that returns room id and secret (for later surfacing room id in UI) [ch2294] (#1528)
3ddb01e sail: make RoomID a common type (#1533)
07dfa73 store: move LogAction/LogEvent to store to make WaitForAction helper usable outside of engine (#1540)
f5f9e3a tiltfile: add update_mode (but it doesn't do anything) (#1532)
51faac7 tiltfile: warning when manifest has impossible live updates (b/c we only get container info for first tilt-built container on a pod, so can't do a live update for any subsequent images) (#1530)
2bbb57c titltfile: fix the impossible live update check when there are undeployed images (#1541)
1f58c99 web: DRY up routing in HUD (#1529)
38283b1 web: add a little debouncer to wheel autoscroll (#1537)
9d7a15d web: error pane (#1526)
5dbd85b web: error pane layout (#1535)
2a00d93 web: fine-tune colors (#1527)
1ee99b2 web: node 11 is minimum version (#1531)
8fde449 web: show last edited file in statusbar (#1536)
b1f4323 web: statusbar combined message (#1518)