gnu: python-jsonschema: Use 'nosetests'.

* gnu/packages/python.scm (python-jsonschema)[arguments]: Replace 'check
phase with python nosetests.
[native-inputs]: Add python-nose.
[home-page]: Use https.
(python2-jsonschema)[native-inputs]: Add python2-mock.

gnu/packages/python.scm

@@ -2521,9 +2521,14 @@ version numbers.")
               (base32
                "0hddbqjm4jq63y8jf44nswina1crjs16l9snb6m3vvgyg31klrrn"))))
     (build-system python-build-system)
+    (arguments
+     '(#:phases
+       (modify-phases %standard-phases
+         (replace 'check (lambda _ (zero? (system* "nosetests")))))))
     (native-inputs
-     `(("python-vcversioner" ,python-vcversioner)))
-    (home-page "http://github.com/Julian/jsonschema")
+     `(("python-nose" ,python-nose)
+       ("python-vcversioner" ,python-vcversioner)))
+    (home-page "https://github.com/Julian/jsonschema")
     (synopsis "Implementation of JSON Schema for Python")
     (description
      "Jsonschema is an implementation of JSON Schema for Python.")
@@ -2535,7 +2540,8 @@ version numbers.")
                      (strip-python2-variant python-jsonschema))))
     (package (inherit jsonschema)
              (native-inputs
-              `(("python2-setuptools" ,python2-setuptools)
+              `(("python2-mock" ,python2-mock)
+                ("python2-setuptools" ,python2-setuptools)
                 ,@(package-native-inputs jsonschema)))
              (propagated-inputs
               `(("python2-functools32" ,python2-functools32))))))