Log Message:
Update to 0.66

Upstream changes:
Release 0.66 - 29 October, 2012
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* Fix a segmentation fault with strcat and no string limit.

Release 0.65 - 26 September, 2012
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* Patch to support @ and ~ in names (thanks to Philip Kime)

Release 0.64 - 8 July, 2012
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* Patch to expand macro size limit (thanks to Philip Kime)

Release 0.63 - 12 May, 2012
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* Patch on what to consider whitespaces (thanks to Philip Kime)