Adding stupid mac filebrowser artifacts to .gitignore.
Adding stupid mac filebrowser artifacts to .gitignore.

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