Merge pull request #167 from dahlia/disable_debug_mode_windows

Upgrade libsass to 3.3.6

Author: asottile

libsass

@@ -81,20 +81,7 @@
     if get_build_version() < 14.0:
         msvc9compiler.get_build_version = lambda: 14.0
         msvc9compiler.VERSION = 14.0
-    # Workaround http://bugs.python.org/issue4431 under Python <= 2.6
-    if sys.version_info < (2, 7):
-        def spawn(self, cmd):
-            from distutils.spawn import spawn
-            if cmd[0] == self.linker:
-                for i, val in enumerate(cmd):
-                    if val.startswith('/MANIFESTFILE:'):
-                        spawn(cmd[:i] + ['/MANIFEST'] + cmd[i:],
-                              dry_run=self.dry_run)
-                        return
-            spawn(cmd, dry_run=self.dry_run)
-        from distutils.msvc9compiler import MSVCCompiler
-        MSVCCompiler.spawn = spawn
-    flags = ['-c', '-O2', '/EHsc', '/MT']
+    flags = ['/Od', '/EHsc', '/MT']
     link_flags = []
 else:
     flags = [