Remove unused module processutils

Change-Id: I251fc61cd593220fdcb7cea9d69d46c5128286b6
Partial-Bug: #1380629
Remove unused module excutils

Partial-Bug: #1380629
Change-Id: I73ef120aa2c432a55c781875a1dc8f8ff2054f98
Clarify ResourceGroup properties support status

Add schema support_status tags to enable docs to reflect that:
- index_var is only available from Juno
- removal_policies will only be available from Kilo.

Hopefully, this can be a first step to documenting recently added
properties to reduce the FAQ-ness in IRC about them.

Change-Id: I334dfdc8c07f6e9411ae73152e601d8143808aeb
Remove validation of nested stack for preview

At preview time, resources have not been created and certain validation
do not apply (such as validating properties acquired from other
resources attributes), so this patch removes the validation of nested
stacks.

Closes-Bug: 1392455
Change-Id: I39be064c775369f1180487f4b48184e288734c49
Mark stack_domain_admin_password as a secret option

Add secret=True to option stack_domain_admin_password,
so that will avoid logging this option in engine.log.

Closes-Bug: #1392162
Change-Id: I04071f37a0053b969dc31a69e62ba9abb075c590
Fix [H302] errors in contrib

Change-Id: I356753e791e574ee45b3b254aaeb80b242e13b23
Merge "Mark stack_domain_admin_password as a secret option"
Merge "Remove validation of nested stack for preview"
Merge "Clarify ResourceGroup properties support status"
Merge "Fix [H302] errors in contrib"
Handle 404 and 409 response when deleting containers

Attempting to delete a stack with multiple SwiftSignalHandles will result
in a 409 error from Swift due to a logic error in the SwiftSignalHandle
resource. This change ensures that we properly handle 404 and 409
responses when deleting Swift containers.

Change-Id: Iac04bf16bce949dd5019975fd07e795cd0685eba
Closes-Bug: #1392867
Merge "Remove unused module processutils"
Merge "Handle 404 and 409 response when deleting containers"
Merge "Remove unused module excutils"