Make subunit 0.0.18 be a hard dependency.

The v2 protocol solves key issues in concurrency and stream handling.
Users that cannot use subunit v2 can run an older testrepository, or
contact upstream to work through whatever issue is blocking them.

Author: rbtcollins

INSTALL.txt

@@ -6,7 +6,7 @@ Run time dependencies
 
 * Python2.4 or newer.
 
-* subunit
+* subunit (0.0.18 or newer).
 
 * fixtures (https://launchpad.net/python-fixtures, or
    http://pypi.python.org/pypi/fixtures/).

NEWS

@@ -18,6 +18,11 @@ CHANGES
 * Test filtering was failing under python3 and would only apply the
   filters to the first test listed by discover. (Clark Boylan, #1317607)
 
+* Version 0.0.18 of subunit is now a hard dependency - the v2 protocol solves
+  key issues in concurrency and stream handling. Users that cannot use subunit
+  v2 can run an older testrepository, or contact upstream to work through
+  whatever issue is blocking them. (Robert Collins)
+
 * When list-tests encounters an error, a much clearer response will
   now be shown. (Robert Collins, #1271133)
 

setup.py

@@ -95,7 +95,7 @@ def get_version():
         ],
       install_requires=[
         'fixtures',
-        'python-subunit >= 0.0.10',
+        'python-subunit >= 0.0.18',
         'testtools >= 0.9.30',
         ],
       extras_require = dict(