v0.7.9

Changelog

bb47d83 build: print dockerfile that is being built (#1295)
27adfab cli: fix up the web version in dev :embarrassed: (#1308)
bc03ca3 docker-compose: strip newline off docker-compose output (#1303)
18a3960 engine: don't kick off a build while tiltfile execution is pending (#1294)
591d15f engine: don't print build order error if there are no more builders to fall back to (#1307)
8964d46 scripts: add yarn install to goreleaser (#1305)
7a226f0 scripts: fix goreleaser (#1300)
9e5ed89 tiltfile: add teardowns to tiltfile tests (#1299)