Fix punctuation spacing

lang/main.json

     "connectionindicator":
     {
         "bitrate": "Bitrate:",
-        "packetloss": "Packet loss: ",
+        "packetloss": "Packet loss:",
         "resolution": "Resolution:",
         "less": "Show less",
         "more": "Show more",
         "localport_plural": "Local ports:",
         "remoteport": "Remote port:",
         "localport": "Local port:",
-        "localaddress": "Local address: ",
-        "localaddress_plural": "Local addresses: ",
-        "remoteaddress": "Remote address: ",
-        "remoteaddress_plural": "Remote addresses: ",
-        "transport": "Transport: ",
+        "localaddress": "Local address:",
+        "localaddress_plural": "Local addresses:",
+        "remoteaddress": "Remote address:",
+        "remoteaddress_plural": "Remote addresses:",
+        "transport": "Transport:",
         "bandwidth": "Estimated bandwidth:",
         "na": "Come back here for connection information once the conference starts"
     },
         "Authenticate": "Authenticate",
         "Cancel": "Cancel",
         "logoutTitle" : "Logout",
-        "logoutQuestion" : "Are you sure you want to logout and stop the conference ?",
+        "logoutQuestion" : "Are you sure you want to logout and stop the conference?",
         "sessTerminated": "Session Terminated",
         "hungUp": "You hung up the call",
         "joinAgain": "Join again",