v4.0.0-1

• new: Support mapped types for object(). 88821bd
• build: Switch to Rollup. (#24) 368eb3f
• breaking: Rename Builder to Predicate. (#23) 03d75de
• breaking: Rewrite to use an underlying Schema. (#22) 731f516
• breaking: Rename runChecks() to run(). 69bd948
• new: Add Builder#validate() method. 7ec0017

v4.0.0-0...v4.0.0-1