Make parameters order stable for multi-parameter URLs (#106)

Fixes #105

* Added intermittently failing test for #105
* Make parameter order stable for urls with multiple params

docs/changelog.rst

@@ -3,6 +3,14 @@ Changelog
 #########
 
 
+*********
+**1.6.2**
+*********
+
+*Release date: TODO, 2018*
+
+- **FIXED:** made documentation ordering of parameters stable for urls with multiple parameters (:issue:`105`, :pr:`106`)
+
 *********
 **1.6.1**
 *********