[CDAP-774] Made application lifecycle namespace-aware
[CDAP-774] Use 'default' namespace everywhere instead of 'developer' accountId
[CDAP-774] Use default namespace instead of 'developer' accountId to fix broken tests
[CDAP-774] Rewrite request URL in v2 to contain correct v3 URL
[CDAP-774] Re-used v3 http handler methods instead of exposing helper methods from v3 handler class
[CDAP-774] Unit tests for AppLifecycleHttpHandler
[CDAP-774] Addressed review comments - method name changes, better tests
[CDAP-774] Refactor and fix a bug in a unit test
Merge branch 'develop' into feature/CDAP-774-namespaced-application-lifecycle
[CDAP-774] Addressed code review comments - fixed issue in namespace validation, tighter checking of namespace versions, updates to javadoc.
[CDAP-774] Made rewriteRequest return the rewrittenRequest
[CDAP-774] Merged develop changes to remove /deploy/status and /promote
[CDAP-774] Addressed code review comments - used @HeaderParam, no system default for appFabric dir
Merge pull request #818 from caskdata/feature/CDAP-774-namespaced-application-lifecycle

[CDAP-774] Made application lifecycle namespace-aware