domainer.pad() accounts for logScale
test for scale.range() changes
test for interpolatedColorScale's domainer
default extent of [1, 10] for Scale.Log
test for [1, 10] log scale domain
Merge branch 'master' into pad-log-scale

Conflicts:
	test/scales/scaleTests.ts
	test/tests.js
Merge pull request #663 from palantir/pad-log-scale

domainer.pad() accounts for logScale