STAC 1.0.0 support, release v2.0.0

Merge remote-tracking branch 'radiant/dev' into master-radiant

Merge remote-tracking branch 'radiant/dev' into master-radiant, v2.0.…

…0-rc.2

Merge remote-tracking branch 'radiant/dev' into master-radiant, v2.0.…

…0-rc.1

# Conflicts:
#	src/migrate.js

Add npm note, v1.0.0

stac-browser v0.8.0

STAC v0.7.0

0.6.2