Added support for Windows color output using colorama (if installed)

sphinx/util/console.py

@@ -55,6 +55,11 @@ def color_terminal():
 
 
 def nocolor():
+    # check if colorama is installed to support color on Windows
+    try:
+        import colorama
+        colorama.init()
+    except ImportError:
         codes.clear()
 
 def coloron():