Changed Log to end the line with a newline character instead of std::endl
Changed Pattern::invertColor to change the existing hash instead of creating a new one
Added additional error checking in Patterns::save and Patterns::addPattern
Changed Pattern3x3::rotate90 to work more intelligently. Added additional error checking in Pattern3x3::operator<<
Merge branch 'master' of github.com:GaryChristiansen42/GoMonteCarlo