check content type in JSONRequestDeserializer

Fixed Bug #1187882

Change-Id: I5e8922690af1cb497366c5f09183bbccbc68f5a2
Add initial resume logic to engine

Change-Id: I08e08bb3edbc83ecce831c8fe7ad718ad7476634
blueprint: stack-suspend-resume
Merge "check content type in JSONRequestDeserializer"
Merge "Add initial resume logic to engine"