move UserStatus.connections to private class attr

bc US.connections is a public variable, there
is some confusion regarding its use. the original
idea was that US.connections would only hold the
default connection types available, much like
the param_defaults attribute for other models;
however, bc of the name, it was implied that this
attribute contained the connections for the specific
instance, resulting in confusion between it and
the intended attributes (i.e., us.followed_by etc).

this commit moves the attribute to a private
attribute (._connections) so that it is clearer
to end-users that it should not be used for a
specific instance.

additionally, this creates a @Property with the
class-specific attributes for US.following, etc.

Author: jeremylow

twitter/models.py

@@ -282,12 +282,12 @@ class UserStatus(TwitterModel):
     """ A class representing the UserStatus structure. This is an abbreviated
     form of the twitter.User object. """
 
-    connections = {'following': False,
-                   'followed_by': False,
-                   'following_received': False,
-                   'following_requested': False,
-                   'blocking': False,
-                   'muting': False}
+    _connections = {'following': False,
+                    'followed_by': False,
+                    'following_received': False,
+                    'following_requested': False,
+                    'blocking': False,
+                    'muting': False}
 
     def __init__(self, **kwargs):
         self.param_defaults = {
@@ -307,12 +307,21 @@ def __init__(self, **kwargs):
             setattr(self, param, kwargs.get(param, default))
 
         if 'connections' in kwargs:
-            for param in self.connections:
+            for param in self._connections:
                 if param in kwargs['connections']:
                     setattr(self, param, True)
 
+    @property
+    def connections(self):
+        return {'following': self.following,
+                'followed_by': self.followed_by,
+                'following_received': self.following_received,
+                'following_requested': self.following_requested,
+                'blocking': self.blocking,
+                'muting': self.muting}
+
     def __repr__(self):
-        connections = [param for param in self.connections if getattr(self, param)]
+        connections = [param for param in self._connections if getattr(self, param)]
         return "UserStatus(ID={uid}, ScreenName={sn}, Connections=[{conn}])".format(
             uid=self.id,
             sn=self.screen_name,