Add server/cache support to gaeconfig.

logdog/common/storage/bigtable/storage.go

Index: logdog/common/storage/bigtable/storage.go
diff --git a/logdog/common/storage/bigtable/storage.go b/logdog/common/storage/bigtable/storage.go
index 00dd18344fa78a726a4ce2c11a58313563ec4373..5357baa8f563c6237417f40ab2ef3fa7882d5870 100644
--- a/logdog/common/storage/bigtable/storage.go
+++ b/logdog/common/storage/bigtable/storage.go
@@ -411,6 +411,7 @@ func (w *rowWriter) append(d []byte) (appended bool) {
 
 func (w *rowWriter) flush(ctx context.Context, raw btTable, index types.MessageIndex,
 	project cfgtypes.ProjectName, path types.StreamPath) (int, error) {
+
 	flushCount := w.count
 	if flushCount == 0 {
 		return 0, nil