Make savanna able to be executed/used as sahara

* add endpoint alias for cli;
* add saharaclient package with link to the savanna client.

In future we'll remove savanna endpoints.

Change-Id: Iec7fd8b13f7a6f1e1ab84a22b5175954189018a3

saharaclient/client.py

@@ -0,0 +1,19 @@
+# Copyright (c) 2014 Mirantis Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from savannaclient import client as savannaclient
+
+
+Client = savannaclient.Client

setup.cfg

@@ -22,10 +22,16 @@ classifier =
 setup-hooks = pbr.hooks.setup_hook
 
 [files]
-packages = savannaclient
+packages = 
+    savannaclient
+    saharaclient
 
 [entry_points]
-console_scripts = savanna = savannaclient.shell:main
+console_scripts =
+    savanna = savannaclient.shell:main
+
+    # TODO(slukjanov): remove this code (temp to migrate to the new name)
+    sahara = savannaclient.shell:main
 
 [build_sphinx]
 all_files = 1