refactored how +/- prefixed url arguments are handled

test/test_notify_base.py

@@ -176,12 +176,6 @@ def test_notify_base_urls():
     assert 'password' in results
     assert results['password'] == "newpassword"
 
-    # pass headers
-    results = NotifyBase.parse_url(
-        'https://localhost:8080?-HeaderKey=HeaderValue')
-    assert 'headerkey' in results['headers']
-    assert results['headers']['headerkey'] == 'HeaderValue'
-
     # User Handling
 
     # user keyword over-rides default password