notify: correct import of email module, sort stdlib modules to top

hgext/notify.py

@@ -133,9 +133,10 b' web.baseurl'
 
 '''
 
+import email, socket, time
 from mercurial.i18n import _
 from mercurial import patch, cmdutil, templater, util, mail
-import email.Parser, email.Errors, fnmatch, socket, time
+import fnmatch
 
 testedwith = 'internal'