bump version: 0.5.4

Author: Martin Durant

setup.py

@@ -29,7 +29,7 @@
 except ImportError:
     from distutils.core import setup, Extension
 
-version = '0.5.3'
+version = '0.5.4'
 long_description = """
 Python bindings for the snappy compression library from Google.
 
@@ -79,6 +79,7 @@
                  'Programming Language :: Python :: 3',
                  'Programming Language :: Python :: 3.5',
                  'Programming Language :: Python :: 3.6',
+                 'Programming Language :: Python :: 3.7',
                  ],
     ext_modules=ext_modules,
     packages=packages,