Update from version 0.10 to 0.13.  Changes:

0.13    2008, Apr 18 (15:50)
- Added support for some spaces between RULES and the rule identifier.
- Support scripts written under MS OSes that still use carriage returns.

0.12    2008, Mar 16 (14:30)
- missing an entry on MANIFEST

0.11    2008, Mar 15 (14:30)
- Added support to the =b=> begin rule;
- added a compiler

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