#NO_ISSUE Constraints refactoring
Add marathon-client.py to the list of clients
Upgrade to React 0.10.0

* Clone children of FormGroupComponent per React best practices to
  prevent modifying children not owned by FormGroupComponent.
Upgrade react-tools to 0.10.0, match react.js version
Remove incorrectly-linked jQuery source map
Merge pull request #256 from MiLk/marathon-client.py

Add marathon-client.py to the list of clients
Merge pull request #250 from mesosphere/upgrade-react

Upgrade to React 0.10.0
#108 Fix concurrent updates
Merge pull request #259 from drexin/wip-108-fix-concurrent-updates-drexin

#108 Fix concurrent updates
Simplify health checks: get rid of response code list
Use correct range
Merge pull request #253 from drexin/wip-refactor-constraints-drexin

#NO_ISSUE Constraints refactoring
Merge pull request #260 from mesosphere/health-api-simple

Simplify health checks: get rid of response code list
Fixes #146 - Zookeeper connection errors on start
Formatting fix
Merge pull request #265 from mesosphere/wip-146-zk-robustness

Fixes #146 - Zookeeper connection errors on start
use instance binding
Asynchronously call sys.exit() to avoid deadlock due to the JVM shutdown hooks.
Switch to scalatest

Using JUnit was sometimes awkward because there are no Scala-ish matchers.
Scalatest is mature enough now to use it here.
Purge the queue when scaling down apps. Fixes #254

Also improve logging.