Removes unused config settings from heat-engine.conf

Change-Id: Ia660009f18eae9d9c22adc5ab36c18f711856bce
Fixes: bug #1134346
heat engine : Add parser parameter support for AWS::StackId

Adds support for the AWS::StackId pseudo parameter, which will
allow us to to reference the stack ARN in the template, e.g so that
stacks can query their resource metadata via ARN not stack name,
which will solve the problem with nested resource being unable
to query their metadata.

ref bug 1131666

Change-Id: Ib7b1d380fa8766b6d0c968bd66270da8ce8245c4
heat engine : Set stack parameters AWS::StackId on stack create/store

We need to set the ARN provided via the AWS::StackId pseudo parameter
when the stack is stored, and also whenever a parser.Stack object is
created

ref bug 1131666

Change-Id: Ic8dc5ab2b25c85c51f2f685fe69bb2447a1e3615
heat engine : Compare runtime resolved resource snippets on update

We need to compare the runtime resolved resource snippet, since that
is what we get back from self.parsed_template.  If we don't do this,
then we get a false positive when a Ref to a parameter which gets
updated (e.g AWS::StackId) is used in the resource properties.

ref bug 1131666

Change-Id: Ib488c43b9eca998a7a82b7571097f5bb69ef946c
heat engine : Re-resolve resource static data before create

Re-resolve the template static data before creating the resource,
or we resolve the wrong value for the AWS::StackId pseudo parameter
which is updated after the parser.Stack gets stored.

ref bug 1131666

Change-Id: I68e87366d379356fd7f2685367300abe5594d6f6
heat engine : loadbalancer resource template, refer to StackId

Use the new AWS::StackId pseudo parameter to refer to the stack for
cfn-hup etc, otherwise the stack lookup by name will fail - using
the AWS::StackId parameter means we'll refer to the stack via the
full ARN and the CFN API will be able to lookup the nested stack.

ref bug 1131666

Change-Id: Ieac738df766ae1f1039e743d465cd080b2090473
Merge "heat engine : Add parser parameter support for AWS::StackId"
Merge "heat engine : Set stack parameters AWS::StackId on stack create/store"
Merge "heat engine : Compare runtime resolved resource snippets on update"
Merge "heat engine : Re-resolve resource static data before create"
Merge "heat engine : loadbalancer resource template, refer to StackId"
Merge "Removes unused config settings from heat-engine.conf"