v1.0.0-rc.3

This is the third release candidate for zap's stable release. There are no breaking changes.

Bugfixes:

• #339: Byte slices passed to zap.Any are now correctly treated as binary blobs rather than []uint8.

Enhancements:

• #307: Users can opt into colored output for log levels.
• #353: In addition to hijacking the output of the standard library's package-global logging functions, users can now construct a zap-backed log.Logger instance.
• #311: Frames from common runtime functions and some of zap's internal machinery are now omitted from stacktraces.

Thanks to @ansel1 and @suyash for their contributions to this release.