Bump version to 0.16.1

Bump version to 0.16.0

- New arches, thanks to @tianon!

Bump version to 0.15.0

Merge pull request krallin#73 from krallin/32bits

Build i386 binary

Update docs to mention 32-bit build

Merge pull request krallin#67 from krallin/fix-subreaper

Fix PR_SET_CHILD_SUBREAPER call

Merge pull request krallin#65 from krallin/fix-tcsetpgrp-typos

Fix tcsetpgrp typos / Release 0.13.1

Merge pull request krallin#60 from krallin/white-label

"White label" when MINIMAL is set

Merge pull request krallin#58 from krallin/version-flag

Add a --version flag

Merge pull request krallin#56 from krallin/release-0.11.0

Release 0.11.0