Merge pull request google#812 from google/release-0.6

release 0.6

Merge pull request google#801 from skeptic-monkey/master

Fix namespace resolution issue in LOG_EVERY_T

Merge pull request google#790 from git-hulk/feature/logs-to-stdout

Add the logtostdout and colorlogtostdout flag to allow logging to stdout

Merge pull request google#646 from sergiud/release-0.5

release 0.5

Merge pull request google#641 from sergiud/nullptr

CHECK support for nullptr (fixes google#341)

Add layering_check to Bazel CI.

This will avoid regressions on google#596.

version 0.4.0

Update the version in CMakeLists.txt to 0.3.5

Merge pull request google#1 from ukai/release_0.3.4

glog: release 0.3.4

release 0.3.3