[PATCH 5 of 6 V2] ui: add color extension to progressive mode

[mathias.demare at gmail.com]

# HG changeset patch
# User Mathias De Maré <mathias.demare at gmail.com>
# Date 1427229798 -3600
#      Tue Mar 24 21:43:18 2015 +0100
# Node ID 431cc24028deada0e3bbc55ff3dee7d962caa922
# Parent  44f6145dde0d844a019c968a6bc5eeddadec533e
ui: add color extension to progressive mode

diff -r 44f6145dde0d -r 431cc24028de mercurial/ui.py
--- a/mercurial/ui.py	Tue Mar 24 21:41:39 2015 +0100
+++ b/mercurial/ui.py	Tue Mar 24 21:43:18 2015 +0100
@@ -485,6 +485,8 @@
 
         if not self.hasconfig('ui', 'statuscopies'):
             self.setconfig('ui', 'statuscopies', 'True')
+        if not self.hasconfig('extensions', 'color'):
+            self.setconfig('extensions', 'color', '')
 
     def plain(self, feature=None):
         '''is plain mode active?