Version 13.0.0

Tagging 13.0.0 also as 0.13.0 for godoc/go modules

Release commit for 13.0.0-rc1

Signed-off-by: Matt Lord <mattalord@gmail.com>

Version 12.0.3

Version 11.0.4

Version 10.0.5

Tagging 12.0.3 also as 0.12.3 for godoc/go modules

Tagging 11.0.4 also as 0.11.4 for godoc/go modules

GoDoc Release v0.10.5

Version 12.0.2