File coherence-fix_twisted_detection.patch of Package python-Coherence

--- coherence/__init__.py.orig	2017-02-20 20:16:43.360134541 +0100
+++ coherence/__init__.py	2017-02-20 20:16:43.376134252 +0100
@@ -24,8 +24,6 @@
     if twisted_version < Version("twisted", 2, 5, 0):
         raise ImportError("Twisted >= 2.5 is required. Please install it.")
 
-    if twisted_web_version < Version("twisted.web", 2, 5, 0):
-        raise ImportError("Twisted.Web >= 2.5 is required. Please install it")
 except ImportError, exc:
     # log error to stderr, might be useful for debugging purpose
     for arg in exc.args: