Rename Cherry to CherryPy (#1252)

* Rename Cherry.py to CherryPy.py

* Update readme.md

c/CherryPy.py

@@ -0,0 +1,8 @@
+import cherrypy
+
+class HelloWorld(object):
+    @cherrypy.expose
+    def index(self):
+        return "Hello World"
+
+cherrypy.quickstart(HelloWorld())