Merge pull request square#871 from square/one-five-foh

Prepare 1.5.4 release

Merge pull request square#859 from square/one-five-three

Prepare 1.5.3 release

Merge pull request square#814 from square/1.5.2

Prepare 1.5.2 release

Prepare 1.5.1 release

Prepare 1.5 release

Prepare 1.4 release

Prepare 1.4-beta2 release

Release 1.4-beta

Releasing 1.3.1

Releasing 1.3