Update setup.py

Updated version number in setup.py

Author: gtribello

setup.py

@@ -6,7 +6,7 @@
 
 setuptools.setup(
      name='PlumedToHTML',  
-     version='0.54',
+     version='0.55',
      author="Gareth Tribello",
      author_email="[email protected]",
      description="A package for creating pretified HTML for PLUMED files",