Rename stackforge/murano to openstack/murano

* Move Murano related projects to openstack namespace
* Move murano-docs to stackforge-attics

Repository murano-docs is moved to attics cause we don't use
this repo for storing documentation, our documentation
is stored in stackforge/murano repo.

Approved commit to governance repository:
   https://review.openstack.org/162745

Change-Id: I56dd0fe97b6aec7026e7ff605f2893cd7521ffcf

gerrit/acls/openstack/murano.config

@@ -0,0 +1,37 @@
+[access "refs/heads/*"]
+abandon = group murano-core
+create = group murano-release
+label-Code-Review = -2..+2 group murano-core
+label-Verified = -1..+1 group murano-ci
+label-Workflow = -1..+1 group murano-core
+
+[access "refs/heads/proposed/*"]
+abandon = group murano-milestone
+exclusiveGroupPermissions = abandon label-Code-Review label-Workflow
+label-Code-Review = -2..+2 group murano-milestone
+label-Code-Review = -1..+1 group Registered Users
+label-Workflow = -1..+1 group murano-milestone
+
+[access "refs/heads/release-*"]
+abandon = group murano-milestone
+exclusiveGroupPermissions = abandon label-Code-Review label-Workflow
+label-Code-Review = -2..+2 group murano-milestone
+label-Code-Review = -1..+1 group Registered Users
+label-Workflow = -1..+1 group murano-milestone
+
+[access "refs/heads/stable/*"]
+abandon = group murano-milestone
+exclusiveGroupPermissions = abandon label-Code-Review label-Workflow
+label-Code-Review = -2..+2 group murano-milestone
+label-Code-Review = -1..+1 group Registered Users
+label-Workflow = -1..+1 group murano-milestone
+
+[access "refs/tags/*"]
+pushSignedTag = group murano-release
+
+[receive]
+requireChangeId = true
+requireContributorAgreement = true
+
+[submit]
+mergeContent = true