Fix swig build (missing arg broke ISR callbacks), clean up unneeded makefile, bump version for release.
diff --git a/setup.py b/setup.py
index 30b7cd2..61dcfbc 100644
--- a/setup.py
+++ b/setup.py
@@ -60,12 +60,13 @@
     '_wiringpi',
     include_dirs=['WiringPi/wiringPi','WiringPi/devLib'],
     sources=sources,
+    swig_opts=['-threads'],
     extra_link_args=['-lcrypt', '-lrt']
 )
 
 setup(
     name = 'wiringpi',
-    version = '2.44.4',
+    version = '2.44.5',
     ext_modules = [ _wiringpi ],
     py_modules = ["wiringpi"],
     install_requires=[],