Release kyua-0.13

Release kyua-0.12

Set the release date and rewrite the release notes to better explain the
changes in this release and to consolidate redundant items.

Release kyua-0.11

Release kyua-0.10

Release kyua-testers-0.3 and kyua-cli-0.9

Release kyua-testers-0.3 and kyua-cli-0.9

Prepare release notes for 0.2

Prepare for 0.2 release

Prepare for 0.8 release

Prepare 0.7 release

Set release date to today.