Hash#{to_s,inspect} based on Array#inspect
Merge pull request #542 from jstepien/hash-to-s

Hash#{to_s,inspect} based on Array#inspect
Numeric#{floor,round,ceil}
Use Coerce.float instead of sending to_f
Merge pull request #543 from jstepien/numeric-floor-round-ceil

Numeric#{floor,round,ceil}