Added index to btCoreGatheringDisplay.gaID for potential join to Gatherings table
Added index to btCoreGatheringDisplay.gaID for potential join to Gatherings table

avdevs/concrete5,TimDix/concrete5,avdevs/concrete5,MichaelMaar/concrete5,avdevs/concrete5,MichaelMaar/concrete5,matt9mg/concrete5,matt9mg/concrete5,matt9mg/concrete5,MichaelMaar/concrete5,TimDix/concrete5,TimDix/concrete5