Version bump to 0.5.0 due to new timeline generation features
Add Brauhaus.ROOM_TEMP which controls the initial grain and water temperatures that were previously hard-coded
Document `wk` and `wks` time factors for Brauhaus.parseDuration
Fix bug in Brauhaus.displayDuration when rounding to e.g. two units where it would display days and minutes instead of just days; add 'start' as a valid value for parseDuration and displayDuration
Additional timeline work; properly handle the extract recipe case which has no top up step; combine first wort addition for spices and fermentables.