Expose isSubsetOf for arrays
Merge remote-tracking branch 'origin/master' into expose-is-subset-of-for-arrays

Conflicts:
	CHANGELOG.md
Add colons to selector names in documentation
Merge remote-tracking branch 'origin/master' into expose-is-subset-of-for-arrays

Conflicts:
	CHANGELOG.md
Merge pull request #58 from talk-to/expose-is-subset-of-for-arrays

Expose isSubsetOf for arrays