Prettified timestamps and error reports in --pretty#20416

Merged

DanielRosenwasser merged 4 commits intomicrosoft:masterfrom JoshuaKGoldberg:tell-me-im-pretty

Dec 19, 2017

+39-18

Commits on Dec 3, 2017

Prettified timestamps and error reports in --pretty
Josh Goldberg
committed
Fixed prettyContextNotDebugAssertion.errors baseline
Josh Goldberg
committed

Commits on Dec 5, 2017

Re-added blue color, with corrected 94m code
Josh Goldberg
committed

Commits on Dec 19, 2017

Converted to enum; marked internal
Josh Goldberg
committed