Tag v1.5.0.

Tag second release candidate for v1.5.0.

Tag first release candidate for v1.5.0.

Tag first bugfix release for 1.4.0.

Tag v1.4.0.

Tag third release candidate for v1.4.0.

Tag second release candidate for v1.4.0.

Tag first release candidate for v1.4.0.

Tag first bugfix release for the 1.3.0 release.

Commit where 'pre_git_history' was merged into master.