Update URL in setup script

Since I'm migrating away from Github, keeping the old URL in future
releases doesn't make sense.

setup.py

     description = ("Somewhat fancy voice command recognition software"),
     license = "GPLv3+",
     keywords = "voice speech command control",
-    url = "https://github.com/Ratfink/kaylee",
+    url = "https://git.clayhobbs.com/clay/kaylee",
     packages = ['kayleevc'],
     long_description = long_description,
     classifiers = [