Update Changelog.
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+2012-06-10:
+  Tagged v1.1.1.
+  Null terminate exponent buffer (only an issue when asserts are enabled).
+  Support more architectures.
+
 2012-02-05:
   Merged in Single-branch with single-precision support.
   Tagged v1.1 (based on b28450f33e1db493948a535d8f84e88fa211bd10).