0.10.4 (Mon, Sep 17 2018)

• 35842ba4 fix: ignore stdio on which call (#121)
• f126c3a0 fix: reject promise on failed kill() (#112)
• 5ee0fde2 Set custom error codes for all errors.
• 841bdf3f Fix picking CHROME_PATH priority over other matches.
• 6b10d748 Fix Travis CI build: GCE for chrome bug (#87)
• d4aa8295 Fix readme's default logLevel (#85)
• 5be71243 Type improvements (#102)
• dd5fdd49 Stricter typing for logLevel (#105)
• c9394cf7 Fix README typo: booelan ==> boolean (#104)
• Update chrome-flags-for-tools.md