Added snapshot target

src/Makefile

@@ -26,6 +26,8 @@ NOT_IN_DIST= \
 
 BIN_DIST_DIR=$(DIST_DIR)-$(host)
 
+SNAPSHOT_DIR=GF-$(shell date +%Y%m%d)
+
 all: unix gfdoc jar
 
 temp: today noopt
@@ -139,6 +141,9 @@ dist:
 rpm: dist
 	rpmbuild -ta $(DIST_DIR).tgz
 
+snapshot: DIST_DIR=$(SNAPSHOT_DIR)
+snapshot: dist
+
 binary-dist: 
 	rm -rf $(BIN_DIST_DIR)
 	mkdir $(BIN_DIST_DIR)