log if we can't log out

src/Lifecycle.js

@@ -54,6 +54,7 @@ function logout() {
     }
 
     return MatrixClientPeg.get().logout().then(_onLoggedOut,
+        (err) => {
             // Just throwing an error here is going to be very unhelpful
             // if you're trying to log out because your server's down and
             // you want to log into a different server, so just forget the
@@ -61,7 +62,9 @@ function logout() {
             // token still valid, but we should fix this by having access
             // tokens expire (and if you really think you've been compromised,
             // change your password).
-        _onLoggedOut
+            console.log("Failed to call logout API: token will not be invalidated");
+            _onLoggedOut();
+        }
     );
 }