link libraries statically and make halo work on Mac OS X

lib/python/setup.py

@@ -5,17 +5,13 @@ import setuptools
 
 # because of relative paths, this must be run from inside halo/lib/python/
 
-MACOSX = (sys.platform in ["darwin"])
-
 setup(
   name = "halo",
   version = "0.1.dev0",
   use_2to3=True,
   packages=find_packages(),
   package_data = {
-    "halo": ["libhalolib.dylib" if MACOSX else "libhalolib.so",
-               "scheduler",
-               "objstore"]
+    "halo": ["libhalolib.so", "scheduler", "objstore"]
   },
   zip_safe=False
 )