updated see for BSD/Linux compatibly
updated see for BSD/Linux compatibly

BSD/Linux sed command line is not compatible for inlace editing without a backup extension, so added an extension and added file to .gitignore
jamiltz/sync_gateway,evankyle/sync_gateway,couchbaselabs/sync_gateway,tleyden/sync_gateway,tleyden/sync_gateway,evankyle/sync_gateway,tophatch/sync_gateway,paulharter/sync_gateway,couchbaselabs/sync_gateway,ceejatec/sync_gateway,tleyden/sync_gateway,ceejatec/sync_gateway,evankyle/sync_gateway,couchbaselabs/sync_gateway,paulharter/sync_gateway,tophatch/sync_gateway,tleyden/sync_gateway,tophatch/sync_gateway,tophatch/sync_gateway,paulharter/sync_gateway,ceejatec/sync_gateway,jamiltz/sync_gateway,paulharter/sync_gateway,jamiltz/sync_gateway,evankyle/sync_gateway,ceejatec/sync_gateway,couchbaselabs/sync_gateway