[Tilecache] performance ideas (StringIO -> cStringIO)

[Soenke J. Peters]

Hi,

replacing native Python's StringIO with its C variant cStringIO
(http://docs.python.org/library/stringio.html#module-cStringIO) could be
another speed improvement:

## diff:
-        import StringIO, Image
+        try:
+            import cStringIO as StringIO
+        except ImportError:
+            import StringIO

Bye,
-- 
  ____   Soenke Jan Peters
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