Filename changes

   import os

   fns = os.listdir('.')
   fns.remove('tmp')
   for fn in fns:
      curfile = file(fn, 'r').readlines( )
      for i, line in enumerate(curfile):
         if line.startswith('from user import *'):
            curfile[i] = 'from abjad import *\n'
      file('tmp/%s' % fn, 'w').writelines(curfile)