Smithing difficulty reduction#2

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jpka wants to merge 3 commits intosemitonal:masterfrom

jpka:smithing-difficulty-reduction

Commits on Apr 30, 2015

fixed makefile.cyg for recent versions of gcc and added some stuff to gitignore that get created on compile and execution
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allowed smithing difficulty reduction for all negative effects, up to half of the actual difficulty
jpka
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Commits on May 4, 2015

take into account what is or isn't 'smithing gear' for smithing difficulty reduction purposes
jpka
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