Update to new cohttp API

Merge pull request #20 from djs55/cohttp-0.12.0-api-almost

Update to prototype Cohttp 0.12.0 API

Update to latest async

Merge pull request #18 from djs55/release-0.9.7

Release 0.9.7

Better async support, more examples

Merge pull request #16 from djs55/event-test

Add async event test

Now depends on cohttp.0.10.0

0.9.5 (02-Mar-2014)

• Adapt to cohttp.0.10.0 (adds flush support)
• Regenerate build with OASIS 0.4.1