Appscale-tools

Highlights of features/bugs in this release:
- Allow different instance type per role
- Use project flag
- Deprecate old AppScalefile arguments
- Dont disable autoscale
- Attach disk for EC2
- Restrict msrestazure version
- Update cron configuration after deploying version
- Display correct module name in log message
- Add support for Jessie
- Remove support for precise
- Fix broken Context Manager reference
- Include inbound services in version configuration
- The tools can parse ‘ and ’
- Create friendly navigation symlinks in gathered logs
- Remove old AppScalefiles
- New format needs to check disk uniqueness and account for single disk
- Change appengine role to compute

Highlights of features/bugs in this release:
- Introduced ability to deploy and manage multiple services
- Introduced 'appscale services' command
- Redesigned ips layout in the AppScalefile
- Introduced a NEW and IMPROVED AppScalefile with backwards compatibility
- Introduced ability to create a new user from the tools
- Fixed a bug with XMPP account creation to allow for two emails with same name but different domain
- Removed the need for email address while deploying apps
- Increased default timeout for tools operations
- Fixed a bug to now allow use of Service accounts while working with GCE
- Other minor improvements and fixes

Highlights of features/bugs in this release:
- Added support to use AdminClient to deploy/undeploy applications.
- Added capability to create publisher image in the Azure agent.
- Modified AppController service to be started directly and add itself to monit.
- Fixed a bug to allow instances to be added manually to a cluster.
- Fixed a bug in the Azure agent to terminate specific instances during downscaling.
- Limited requests package version to >= 2.7.0 and <2.15.
- Fixed a bug in upgrade command to be able to do an appscale down.

Highlights of features/bugs in this release:
- Fixed appscale upgrade from 3.1.0
- Added support for appscale ssh to role
- Integrated Azure Scale Sets into the agent
- Modified Azure agent to assign Public IPs only for load balancers
- Refined appscale down: added --terminate option
- Improved appscale get/set property functionality
- Improved appscale status output (in particular for large deployments)
- Fixed a bug where agents would default to spot instances
- Simplified deployment state handling (merged locations yaml and locations json file)

Notable Changes
- Added support for using Azure as an infrastructure
- Added a check to see if the tools are up-to-date when running `appscale upgrade`
- Dropped `nose` as a dependency

- Decouple AppScale Tools and AppScale versions