v3.1.1

Patches

• Move localStorage assignment into constructor call: ac99986
  This is friendlier to server-side usage as a global.localStorage shim is no longer needed on import.

Refactor

• Dropped 11 bytes via function & variable inlining: 8ece2eb, 3dacb7c, 3f541f2

Chores

• Added full test coverage (#10): 2f11702, af1568c, 3681152, 37041b3, 861f7b3, 824eeb0