Replaced all assert() with appropriate Checks and Faults in SNFMulti and it's components. Also added some minor tweaks to improve code safety and eliminate compiler warnings.
Minor tweaks to GBUdb.* to remove compiler warnings.
Minor tweaks to snf_engine.* to remove compiler warnings.
Refactored Evaluator objects to use unsigned ints for positions.
git-svn-id: https://svn.microneil.com/svn/SNFMulti/trunk@6 dc71a809-1921-45c4-985c-09c81d0142d9
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