requested to merge ssnyder/athena:maskedDrawers.TileConditions-20190110 into master
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TileROD_Decoder was caching flags of masked drawers, updated each run, which is not MT-safe. This should instead be done via a conditions algorithm.
Rather than introduce a new conditions algorithm, it seems reasonable to roll this functionality into the existing TileBadChannelsCondAlg and make the result available via TileBadChanTool. That way, TileROD_Decoder doesn't need to grow any new dependencies.