[PATCH] svn2rss.py: Set default value for 'svn_path' based on PATH

Hello,

Please find attached the patch to set default value for 'svn_path' based
on PATH environment variable.

[[[
Set default value for 'svn_path' based on PATH environment variable

* contrib/hook-scripts/svn2rss.py
  (get_svn_path): New function to scan the PATH environment variable and
  set the 'svn_path' variable. Exit, if the command is not found
  (SVN2RSS.__init__): Donot check if 'svn_path' is not None since we
  set this value now
  (main): If 'svn_path' is None, call get_svn_path()
]]]

-- 
Regards,
Bhuvaneswaran