Update versions before release

pycroscopy/__version__.py

-version = '0.0.53'
-date = '8/14/2017'
-time = '9:41:32'
+version = '0.0.54'
+date = '9/6/2017'
+time = '8:42:32'

setup.py

@@ -20,7 +20,7 @@ else:
 
 setup(
     name='pycroscopy',
-    version='0.0.53',
+    version='0.0.54',
     description='A suite of Python libraries for high performance scientific computing of microscopy data.',
     long_description=long_description,
     classifiers=[