finalized conversion to protobuf:

- fixed import+export
- generalized file options
- always store keys as lowercase
- fixed+enhanced docs
- fixed tests

cmd/root.go

@@ -122,7 +122,6 @@ func Execute() {
 	// CRUD
 	rootCmd.AddCommand(Set(&conf))
 	rootCmd.AddCommand(List(&conf))
-	rootCmd.AddCommand(Find(&conf))
 	rootCmd.AddCommand(Get(&conf))
 	rootCmd.AddCommand(Del(&conf))