* Updating Changelog to reflect what's changing in 1.22.1
* Bug fix: Setting the same constraint multiple times is no longer allowed.
* Constraints map has been added to handle constraints being added to Aurora Jobs.
* Lowering timeout to avoid flaky test for bad payload timeout.
* Adding attributes to Mesos agents in order to test limits by constraint.
* Make two instances schedulable per zone in order to experience flaky behavior.
* Changing generateBinding.sh check to check for thrift 0.12.0 and adding support for Variable Batch updates.
* Adding update strategies change to changelog, changed docker-compose to point to aurora 0.22.0 snapshot. Added test coverage for update strategies.
* Adding parameter for Aurora so that we're able to run SLA aware updates with less than 20 instances. Lowered time it takes to run test by reducing watch time per instance as well.
* Reducing the number of instances and time for SLA aware instances in docker-compose set up.
* Adding another Mesos agent to the docker-compose setup.
* Huge thanks to @zircote for this contribution.
* Adding Travis CI badge
* Modifying end to end tests to reflect testing against docker-compose setup in Travis CI.
* Adding bash script to run simple container with tests within bridge network for Mac.
* Adding documentation for setting up a developer environment.
* Decreasing amount of CPU needed for CreateJobWithPulse because a higher value causes Travis CI to hang.
