Change Fuel version from 2015.1-8.0 to liberty-8.0

Recently Fuel has changed its version format in order to be closer
to OpenStack [1]. We should reflect that change in FPB's templates
and example plugins.

[1]: I5bdabcf921ccda53b672d3f535238cd4c8c184fc

Change-Id: I6d2610aae51c4e8ac7e8699914975c84fa8c62f8
Closes-Bug: #1535293

examples/fuel_plugin_example_v1/metadata.yaml

@@ -36,7 +36,7 @@ releases:
     deployment_scripts_path: deployment_scripts/
     repository_path: repositories/ubuntu
   - os: ubuntu
-    version: 2015.1.0-8.0
+    version: liberty-8.0
     mode: ['ha']
     deployment_scripts_path: deployment_scripts/
     repository_path: repositories/ubuntu

examples/fuel_plugin_example_v2/metadata.yaml

@@ -34,7 +34,7 @@ releases:
     deployment_scripts_path: deployment_scripts/
     repository_path: repositories/ubuntu
   - os: ubuntu
-    version: 2015.1.0-8.0
+    version: liberty-8.0
     mode: ['ha']
     deployment_scripts_path: deployment_scripts/
     repository_path: repositories/ubuntu

examples/fuel_plugin_example_v2_update/metadata.yaml

@@ -34,7 +34,7 @@ releases:
     deployment_scripts_path: deployment_scripts/
     repository_path: repositories/ubuntu
   - os: ubuntu
-    version: 2015.1.0-8.0
+    version: liberty-8.0
     mode: ['ha']
     deployment_scripts_path: deployment_scripts/
     repository_path: repositories/ubuntu

examples/fuel_plugin_example_v3/metadata.yaml

@@ -26,7 +26,7 @@ releases:
     deployment_scripts_path: deployment_scripts/
     repository_path: repositories/ubuntu
   - os: ubuntu
-    version: 2015.1.0-8.0
+    version: liberty-8.0
     mode: ['ha']
     deployment_scripts_path: deployment_scripts/
     repository_path: repositories/ubuntu

examples/fuel_plugin_example_v4/metadata.yaml

@@ -24,7 +24,7 @@ is_hotpluggable: false
 # The plugin is compatible with releases in the list
 releases:
   - os: ubuntu
-    version: 2015.1-8.0
+    version: liberty-8.0
     mode: ['ha']
     deployment_scripts_path: deployment_scripts/
     repository_path: repositories/ubuntu

fuel_plugin_builder/templates/v3/plugin_data/metadata.yaml.mako

@@ -26,7 +26,7 @@ releases:
     deployment_scripts_path: deployment_scripts/
     repository_path: repositories/ubuntu
   - os: ubuntu
-    version: 2015.1.0-8.0
+    version: liberty-8.0
     mode: ['ha']
     deployment_scripts_path: deployment_scripts/
     repository_path: repositories/ubuntu

fuel_plugin_builder/templates/v4/plugin_data/metadata.yaml.mako

@@ -24,7 +24,7 @@ is_hotpluggable: false
 # The plugin is compatible with releases in the list
 releases:
   - os: ubuntu
-    version: 2015.1-8.0
+    version: liberty-8.0
     mode: ['ha']
     deployment_scripts_path: deployment_scripts/
     repository_path: repositories/ubuntu

fuel_plugin_builder/tests/test_validator_v4.py

@@ -95,7 +95,7 @@ class TestValidatorV4(TestValidatorV3):
             'releases': [
                 {
                     "os": "ubuntu",
-                    "version": "2015.1-8.0",
+                    "version": "liberty-8.0",
                     "mode": ['ha'],
                     "deployment_scripts_path": "deployment_scripts/",
                     "repository_path": "repositories/ubuntu"