Fixed: Bug #96892.

Now use  system setuptools  if it is  available.  This can  also speed
bootstrapping,  since we  don't need  to download  setuptools  in more
cases.

bootstrap/bootstrap.py

@@ -24,12 +24,15 @@ import os, shutil, sys, tempfile, urllib2
 
 tmpeggs = tempfile.mkdtemp()
 
-ez = {}
-exec urllib2.urlopen('http://peak.telecommunity.com/dist/ez_setup.py'
-                     ).read() in ez
-ez['use_setuptools'](to_dir=tmpeggs, download_delay=0)
-
-import pkg_resources
+try:
+    import pkg_resources
+except ImportError:
+    ez = {}
+    exec urllib2.urlopen('http://peak.telecommunity.com/dist/ez_setup.py'
+                         ).read() in ez
+    ez['use_setuptools'](to_dir=tmpeggs, download_delay=0)
+
+    import pkg_resources
 
 cmd = 'from setuptools.command.easy_install import main; main()'
 if sys.platform == 'win32':