Merge pull request #158 from quartiq/release/0.9

Preparing 0.9 release

Merge pull request #154 from quartiq/release-0.8.0

release 0.8.0

Merge pull request #127 from quartiq/release/0.7

Preparing for 0.7 release

Merge pull request #124 from quartiq/release/0.6.2

Preparing for a 0.6.2 release

Merge pull request #117 from quartiq/release/0.6.1

Preparing 0.6.1 release

Merge pull request #114 from quartiq/release/0.6.0

Release/0.6.0

Merge pull request #82 from quartiq/release/v0.5.3

Preparing 0.5.3 release

Merge pull request #78 from quartiq/feature/release-0.5.2

Preparing for 0.5.2

Merge pull request #71 from quartiq/rs/issue-69/keepalive-interval

Patching keepalive interval support

Merge pull request #67 from quartiq/release/0.5.0

Release/0.5.0