Support for unofficial projects and add savanna

Change-Id: I9eaa72c7c66d672c18f26ec9248fb9ef261bf6ea

projects/savanna.json

@@ -0,0 +1,14 @@
+{
+    "name": "savanna",
+    "subprojects": [
+        "stackforge/savanna",
+        "stackforge/savanna-pythonclient",
+        "stackforge/savanna-dashboard",
+        "stackforge/savanna-extra"
+    ],
+    "unofficial": true,
+    "core-team": [
+        "slukjanov",
+        "aignatov"
+    ]
+}

utils.py

@@ -38,7 +38,8 @@ def get_projects_info(project=None, all_projects=False):
         if os.path.isfile(fn):
             with open(fn, 'r') as f:
                 project = json.loads(f.read())
-                projects.append(project)
+                if not (all_projects and project.get('unofficial')):
+                    projects.append(project)
 
     return projects