Update the git removal script to order by last checkin and only list branches older than (default) 60 days.
Update the git removal script to order by last checkin and only list
branches older than (default) 60 days.

flybird119/voltdb,flybird119/voltdb,creative-quant/voltdb,wolffcm/voltdb,simonzhangsm/voltdb,VoltDB/voltdb,deerwalk/voltdb,simonzhangsm/voltdb,creative-quant/voltdb,wolffcm/voltdb,flybird119/voltdb,wolffcm/voltdb,migue/voltdb,zuowang/voltdb,ingted/voltdb,simonzhangsm/voltdb,migue/voltdb,ingted/voltdb,creative-quant/voltdb,zuowang/voltdb,zuowang/voltdb,VoltDB/voltdb,ingted/voltdb,zuowang/voltdb,simonzhangsm/voltdb,flybird119/voltdb,ingted/voltdb,deerwalk/voltdb,kumarrus/voltdb,creative-quant/voltdb,kumarrus/voltdb,zuowang/voltdb,ingted/voltdb,VoltDB/voltdb,migue/voltdb,migue/voltdb,zuowang/voltdb,VoltDB/voltdb,flybird119/voltdb,simonzhangsm/voltdb,wolffcm/voltdb,kumarrus/voltdb,paulmartel/voltdb,flybird119/voltdb,paulmartel/voltdb,deerwalk/voltdb,flybird119/voltdb,creative-quant/voltdb,zuowang/voltdb,paulmartel/voltdb,paulmartel/voltdb,kumarrus/voltdb,zuowang/voltdb,migue/voltdb,kumarrus/voltdb,VoltDB/voltdb,deerwalk/voltdb,creative-quant/voltdb,wolffcm/voltdb,paulmartel/voltdb,creative-quant/voltdb,deerwalk/voltdb,deerwalk/voltdb,paulmartel/voltdb,deerwalk/voltdb,ingted/voltdb,wolffcm/voltdb,kumarrus/voltdb,paulmartel/voltdb,wolffcm/voltdb,ingted/voltdb,deerwalk/voltdb,creative-quant/voltdb,VoltDB/voltdb,migue/voltdb,kumarrus/voltdb,simonzhangsm/voltdb,migue/voltdb,kumarrus/voltdb,wolffcm/voltdb,simonzhangsm/voltdb,paulmartel/voltdb,ingted/voltdb,migue/voltdb,VoltDB/voltdb,simonzhangsm/voltdb,flybird119/voltdb