Version 1.5.0

Bump to 1.4.0

Incrementing minor version since MismatchException base class changes.

Update changelog and version for 1.3.0 release

Version 1.2.0

- New: Use monotonic clock for duration calculations
- New: Drop support for ruby <2.1 to support monotonic clock
- New: Run CI on Ruby 2.5

Bump version to 1.1.2

Version 1.1.1

Bump the v1.1.0 release date

Merge pull request github#31 from github/one-dot-oh-dot-oh

1.0.0

Bump version to 0.0.4

Bump version to 0.0.3