Need to take URLs into account when running playbooks too

Ensure that if meta/main.yml has dependencies containing URLs
these are correctly resolved at playbook runtime.

Update role_name during run time so that output of e.g. task names
look sensible

lib/ansible/playbook/play.py

@@ -178,6 +178,10 @@ class Play(object):
         returns any variables that were included with the role
         """
         orig_path = template(self.basedir,role,self.vars)
+        if '+' in orig_path and '://' in orig_path:
+            # dependency name pointing to SCM URL
+            # assume role name is last part of the URL
+            orig_path = orig_path.split('/')[-1]
 
         role_vars = {}
         if type(orig_path) == dict:
@@ -412,6 +416,8 @@ class Play(object):
                 role_name = role['role']
             else:
                 role_name = role
+            if '+' in role_name and '://' in role_name:
+                role_name = role_name.split('/')[-1]
 
             role_names.append(role_name)
             if os.path.isfile(task):