Polishing What's New in 1.3 Section
[artifactory-release] Release version 1.3.0.M1
[artifactory-release] Next development version
AMQP-306 Doc Fixes

Fix version (incorrectly stated 1.2.1 instead of 1.3.0)
Add what's new for dynamic consumers
AMQP-356 Reduce Test Log Levels

4 Test cases generate > 6Mb of logs; causes CI build delays.

JIRA: https://jira.springsource.org/browse/AMQP-356