Remove libunwind library link

Added windows links support for logging

Merge pull request #646 from sergiud/release-0.5

release 0.5

Merge pull request #641 from sergiud/nullptr

CHECK support for nullptr (fixes #341)

Add layering_check to Bazel CI.

This will avoid regressions on #596.

version 0.4.0

Update the version in CMakeLists.txt to 0.3.5

Merge pull request #1 from ukai/release_0.3.4

glog: release 0.3.4

release 0.3.3

release 0.3.2