Bumping package to 2.2.4 for submodule changes. 2.2.3 was released but never got into source control and so is skipped here

Author: Sam Rensenhouse

owa-epanet/setup.py

@@ -6,7 +6,7 @@
 
 setup(
     name = "owa-epanet",
-    version = "2.2.2",
+    version = "2.2.4",
     author = "Sam Hatchett",
     author_email = "samhatchett@gmail.com",
     description = "a thin wrapper for epanet hydraulic toolkit",