v0.7.4

Changelog

ae02ca2 ci: store macos test results (#1150)
b09c5bb delete the docs! they now live at https://github.com/windmilleng/tilt.build (#1158)
cd69c71 engine: allow explicit k8s_resource with just yaml, no image, to appear in hud, get logs, etc. [ch1457] (#1156)
486a446 engine: inject deployID on k8s deploy, use that to find pods [ch1544] (#1141)
8197914 goreleaser: remove homebrew dependencies (#1157)
4fdb60e hud: add resource log benchmark (#1153)
bb3faf2 k8s: pull context from the k8s api instead of from the cli (#1146)
58d24ee k8s: watch pods with informer (#1162)
d9114b6 synclet: add hot_reload (#1154)
21ca2b2 tilt: release v0.7.3 (#1148)
ea9b5be tiltfile: parallelize docker-compose config calls for faster manifest load [ch1201] (#1151)
c88034c update go.mod
335d50f update go.mod