Update __init__.py

On non-Windows systems: things stay as they are
On windows system: it would pass the path to the thrift file with "file://" scheme.
If ThriftPY is fixed to handle the 'file' scheme - things would work on windows.
Until then, things will stay broken, as they are now.

This is further discussed here: python-happybase#148
and here:  Thriftpy/thriftpy#269

NOTE: I created a corresponding fork and pull request on thrifypy as well:
 Thriftpy/thriftpy#270

happybase/__init__.py

@@ -5,7 +5,14 @@
 
 import pkg_resources as _pkg_resources
 import thriftpy as _thriftpy
-_thriftpy.load(
+import platform
+
+if platform.system()=="Windows":
+   _thriftpy.load(
+    'file://'+_pkg_resources.resource_filename('happybase', 'Hbase.thrift'),
+    'Hbase_thrift')
+else:
+   _thriftpy.load(
     _pkg_resources.resource_filename('happybase', 'Hbase.thrift'),
     'Hbase_thrift')