v1.0.0-rc.4

Many thanks to @ssalbdivad, @matthew-dean, @Dominic-Preap, @emilesabatier and @tats-u for contributing to this release.

• Change RFC_EMAIL_REGEX to exactly match HTML specification (pull request #1068)
• Change ISO_DATE_TIME_REGEX and ISO_TIMESTAMP_REGEX to support space as separator (pull request #1064)
• Change forward, forwardCheck, partialCheck and partialCheckAsync to improve TypeScript performance (issue #987)
• Change pipe tuple of pipe and pipeAsync to be readonly by default