remove SA version check

plugins/sa_plugin.py

@@ -2,14 +2,11 @@
 
 from cherrypy.process import plugins
 
-from sqlalchemy import create_engine, MetaData, __version__ as sa_version
+from sqlalchemy import create_engine, MetaData
 from sqlalchemy.orm import scoped_session, sessionmaker
 
 __all__ = ['SAEnginePlugin']
 
-if sa_version.split('.') < ['0', '7', '4']:
-    raise ImportError('Version 0.7.4 or later of SQLAlchemy required.')
-
 class SAEnginePlugin(plugins.SimplePlugin):
     """
         SQLAlchemy integration for CherryPy