Added release notes for 1.2.0 release

Change-Id: I8157568a2ea7571188c4e5e18f93ae5a94a2768b

releasenotes/notes/1.2.0-issues-b2a59ad39a734e35.yaml

@@ -0,0 +1,4 @@
+---
+issues:
+  - Deploying Cloud Foundry integration service with this release of ``fuel-plugin-murano`` does not work correctly.
+  - Community App Catalog UI panels, delivered as part of ``fuel-plugin-murano`` do not work correctly with this release.

releasenotes/notes/add-default-security-group-78855a66b960840a.yaml

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+---
+fixes:
+  - added default rules to NeutronSecurityGroupManager to avoid
+    error if `createDefaultInstanceSecurityGroupRules()` method isn't
+    extended in inheritor and SecurityGroups isn't created in application
+    with call of `addGroupIngress()` method.

releasenotes/notes/bug-1629221-e7f1766eb9878f23.yaml

@@ -0,0 +1,4 @@
+---
+
+features:
+  - CLI command :command:``env-templat-create-env`` now supports ``--region`` flag

releasenotes/notes/dashboard-rename-split-650ba2f7d4f846c2.yaml

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+---
+prelude: >
+    Murano Dashboard has been renamed to App Catalog and now allows
+    seamless integration and single panel structure
+    with App Catalog UI dashboard.
+features:
+  - Murano dashboard has been renamed to App Catalog,
+    monolithic config file has been split into multiple small files.
+    Every such file defines either a panel group or adds
+    general murano-related settings to horizon.
+upgrade:
+  - To upgrade to Newton version of app catalog you need to remove old
+    ``_50_murano.py`` config file, that defined in murano dashboard. Be sure to
+    also remove any .pyc and .po files. After that you need to copy all new
+    config files from ``muranodashboard/local/enabled/*.py`` to
+    ``openstack_dashboard/local/enabled/`` and restart horizon

releasenotes/notes/environment-edit-213789159902d4c3.yaml

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+---
+features:
+  - /environments/ENV_ID/model/PATH endpoint added.
+    GET request responds with the subsection of ENV_ID's object model
+    located in its PATH.
+    PATCH request applies json-patch from request body to ENV_ID's model. It
+    does not contain PATH in the URL.

releasenotes/notes/environment-edit-7faf5c8e8a3d44ac.yaml

@@ -0,0 +1,11 @@
+---
+features:
+  - Support for environment model edit API was added
+  - New Murano CLI command ``murano environment-model-show <ID> [--path <PATH>]
+    [--session-id <SESSION_ID>]``
+  - New Murano CLI command ``murano environment-model-edit <ID> <FILE>
+    --session-id <SESSION_ID>``
+  - New OSC command ``openstack environment model show <ID> [--path <PATH>]
+    [--session-id <SESSION_ID>]``
+  - New OSC command ``openstack environment model edit <ID> <FILE>
+    --session-id <SESSION_ID>``

releasenotes/notes/fix_type_format-798a646071b1104b.yaml

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+---
+fixes:
+  - The issue with adding already deployed components to environment
+    via dropdown is fixed with applying changes for the new type format.

releasenotes/notes/heat_push_async-da3f31b63284a0ea.yaml

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+---
+features:
+  - io.murano.system.HeatStack.push can be called with
+    async => true flag for asynchronous push

releasenotes/notes/metadata-aware-mixin-41777dd8d1802908.yaml

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+---
+features:
+  - Added a MetadataAware mixin class capable to retrieve the metadata
+    attributes from the implementing objects and all its parents.

releasenotes/notes/metadata-getter-76907aa1f0325adc.yaml

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+---
+features:
+  - Added a ``metadata()`` yaql function to retrieve the meta information about the
+    object, stored in the "?/metadata" section of object model.
+other:
+  - Bumped the RUNTIME_VERSION attribute to 1.5

releasenotes/notes/objects-copy-objects-merge-8f2752b1a1a18af0.yaml

@@ -1,11 +1,11 @@
 ---
 features:
-  - Previously, the pre-deployment garbage collection executed the ``.destroy``
+  - Previously, when pre-deployment garbage collection occurred it executed ``.destroy``
     method for objects that were present in the ``ObjectsCopy`` section of the
     object model (which is the snapshot of the model after last deployment)
     and not present in the current model anymore (because they were deleted
     through the API between deployments). If the destroyed objects were to
-    access another object that was not deleted, it was accessing its copy from
+    access another object that was not deleted it was accessing its copy from
     the ``ObjectsCopy``. Thus any changes to the internal state made by that
     object were lost after the garbage collection finished (that is, before the
     ``.deploy`` method call) and could not affect the deployment.

releasenotes/notes/osc-package-list-command-23e39dc92ead8834.yaml

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+---
+features:
+  - New OSC command ``package list``.

releasenotes/notes/put-empty-body-d605c2083b239f76.yaml

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+---
+fixes:
+  - It is now possible to make a PUT request with body equal to '[]' to
+    '/environments/<env_id>/services' endpoint. This will result in removing
+    all apps from current session. This allows deleting the last application
+    from environment from CLI.

releasenotes/notes/release-cinder-volumes-01c29d28031a94dd.yaml

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+---
+fixes:
+  - Previously Cinder Volumes created in MuranoPL were not released correctly
+    on object destruction. The issue is now fixed.