updated test project to be .NET 4.5
added test case to verify that we can dispatch to async handler
removed type arg on handler activator api
added test case to verify request/reply capability (i.e. actually testing that the message context is available)
started pulling out message context  - should be moved to transaction context (which will become the only 'ambient' context)
added test to verify async threading behavior
hmmm.....
the initial tests run, fragile but kind of working
merging master
added comment + a little bit of cleanup to Rabbit test case
Adding managed transaction context
work can be continued by any worker in bus
Merge branch 'feature-async-await-2' of github.com:rebus-org/Rebus into feature-async-await-2
removed superflous test handler
testing exceptions
Updated all projects to net4.5
first small steps to make stack shallower to not await so much
merged master and fixed a few tests
mitigating unwanted serializing of callcontext data in tests
reverted some dynamic stuff that will only work if messages are always public classes. would that be a reasonable assumption?