- Change how depsolving is done
      - Get all potential matches for a dep, instead of our 'best'
        our 'best' may not be the same as install time best.
      - Remove anaconda code, use direct yum functions to get deps
      - Use a True/False flag to depsolve instead of iterating over
        a dict.
      - Log what packages are being added for which reasons.
    
    - Also fix a think-o with the false negative unmatched workaround.