v1.2 update initial db data

mongodb_backup/leanote_install_data/attachs.metadata.json

@@ -0,0 +1 @@
+{"indexes":[{"v":1,"key":{"_id":1},"name":"_id_","ns":"leanote_bin_test.attachs"},{"v":1,"key":{"NoteId":1},"name":"NoteId_1","ns":"leanote_bin_test.attachs","background":true}]}