v0.9.4

Changelog

78b19a9 Command line flag for opening browser (#1830)
d0fcdb6 Remove ROADMAP in favor of GitHub project (#1847)
7ff1e73 build: stream tar to docker (#1832)
ecc4454 bump version to 0.9.3 (#1839)
81f5ca6 engine: WatchManager should pass ignore filters to watch.Notify instead of doing filtering itself (#1842)
499f67d feature: remove event flag, enabling it for everyone (#1848)
0918877 feature: turn on events for everyone, but leave flag in for back compat (#1856)
5b29b60 git: remove another pathmatcher implementation (#1840)
72aa184 hud: allow enter on yaml resource (#1843)
88f5d8b tiltfile: handle duplicate resources without erroring (#1854)
4b5da4e tiltfile: skip multiple container check if feature is enabled (#1849)
218c48e tiltfile: unknown feature flag checks are warnings (#1855)
f5b40b1 watch: FileEvents must always be absolute (#1841)
a92569b watch: add tests for ignores and number of watches (#1838)
b712d3b watch: skip setup if nothing is being watched (#1861)