3 commits

Author	SHA1	Message	Date
James Graham	a208379f46	Update prefs API to return an Option<bool>. ... This allows for situations where there is no reasonable default to apply for the pref value e.g. when we are just listing values	2015-09-04 15:55:29 +01:00
Josh Matthews	6e26fefad1	Allow setting preferences from the reftest manifest. Add a command-line arg to enable a given preference.	2015-08-28 10:50:55 -04:00
Josh Matthews	a3ee9b5dd9	Replace catch-all experimental flag with fine-grained boolean preferences initialized from a JSON document.	2015-08-28 10:30:04 -04:00