Empty files shouldn't contain copyright nor license

http://docs.openstack.org/developer/hacking/#openstack-licensing

Change-Id: I5fc4e19a47c2a26df0fed78f3e06daad6157694c
Closes-Bug: #1262424
Use WithScenarios base class instead of load_tests

To support test scenarios, we now override load_tests in the module
using them. To support alternate test runners and not needing that, the
patch makes the Heat test base class inherit testsceanios.WithScenarios.

Change-Id: Ie2435e41c466c0687bb1dd95080dcac7c837aaba
Rename scaleout_apis.rst -> scale_deployment.rst

The multi-engine docs will be added to the file currently named
scaleout_apis.rst.  Renaming it to scale_deployment.rst to make the name
more generic.

blueprint multi-engine-docs
Change-Id: I038d775a065ccd22da9ec0dbc3d8fa5a806ca020
Add test for AutoScalingGroup resize and metadata

Added a test to ensure that AutoScalingGroup
updates related resources after scaling up.

Change-Id: I88e1d832f4909f417af9e860a829c7e5f20ce0d5
Related-Bug: #1227627
Enhance message for watch rule

When heat engine log message for watch rule, it will log message
as following:
WATCH: stack:86ef85cb-994c-4481-bb4d-2bb556236dbd,
watch_name:a1-MEMAlarmHigh ALARM

We should update it to:
WATCH: stack:86ef85cb-994c-4481-bb4d-2bb556236dbd,
watch_name:a1-MEMAlarmHigh, new_state:ALARM

This patch also enables I18N for this log message.

Change-Id: I23a825a8b5bed621c7d3fc3e582e853e52a3e69d
Remove redundant word from OS::Nova::Server

All parameters not marked as "Required" are optional. The documentation
generated from the schemas will already note this, so having the word in
the description is redundant.

Change-Id: I1df10c598969e97d5c1c8ecd1c2896a59ae1d2d1
Closes-Bug: #1225845
Merge "Empty files shouldn't contain copyright nor license"
Remove usage of mox class

We have a base test class already that does the cleaning, we don't need
to use mox base class, which uses a different pattern for the stub
object.

Change-Id: I5fce772bd330f9fb0fca5821ab200b55c0fb7358
Merge "Add test for AutoScalingGroup resize and metadata"
Merge "Use WithScenarios base class instead of load_tests"
Merge "Remove usage of mox class"
Merge "Remove redundant word from OS::Nova::Server"
Merge "Enhance message for watch rule"
Merge "Rename scaleout_apis.rst -> scale_deployment.rst"