copied all existing Azure stuff to parallel world
adapted to using queues instead of one single topic
cleaned up new Azure transport
made reliability test work on new queues impl as well
cleaned up revised Azure transport + made it auto-renew lease during the commit phase (in case retries take a long time to execute)
nudges, nudges
changed a few details around how the peek lock is renewed with ASB
made new Azure transport automatically renew the peek lock
logging of exceptions during retries with ASB transport and also removed old auto-renewal of peek lock
set peek lock renewal time when receiving the message
made queues default to 5 minute TTL
Adding test to show issue with SqlServerSubscriptionStorage and ConnectionHolder
Merge file://d:/projects/public/rebus
Merge pull request #214 from hagbarddenstore/master

Changed bacckoff behavior to be configurable
added missing category
refactored backoff strategy configuration slightly (mostly in order to move backoff times closer to the strategy names)
changed the changelog
merged master into branch
transfer some of the headers to externally visible fields of BrokeredMessage when possible
updated azure deps