增加当前节点本地定时缓存，修改部分潜在BUG，启动时Mongo或者redis无法正常连接时，进入启动等待

backend/vendor/github.com/leodido/go-urn/.gitignore

@@ -6,4 +6,6 @@
 *.test
 
 *.out
-*.txt
+*.txt
+
+vendor/

backend/vendor/github.com/leodido/go-urn/.travis.yml

@@ -3,6 +3,9 @@ language: go
 go:
   - 1.9.x
   - 1.10.x
+  - 1.11.x
+  - 1.12.x
+  - 1.13.x
   - tip
 
 before_install:

backend/vendor/github.com/leodido/go-urn/makefile

@@ -1,12 +1,21 @@
 SHELL := /bin/bash
 
+build: machine.go
+
+images: docs/urn.png
+
 machine.go: machine.go.rl
 	ragel -Z -G2 -e -o $@ $<
-	@gofmt -w -s $@
 	@sed -i '/^\/\/line/d' $@
+	@$(MAKE) -s file=$@ snake2camel
+	@gofmt -w -s $@
 
-.PHONY: build
-build: machine.go
+docs/urn.dot: machine.go.rl
+	@mkdir -p docs
+	ragel -Z -e -Vp $< -o $@
+
+docs/urn.png: docs/urn.dot
+	dot $< -Tpng -o $@
 
 .PHONY: bench
 bench: *_test.go machine.go
@@ -14,4 +23,17 @@ bench: *_test.go machine.go
 
 .PHONY: tests
 tests: *_test.go machine.go
-	go test -race -timeout 10s -coverprofile=coverage.out -covermode=atomic -v ./...
+	go test -race -timeout 10s -coverprofile=coverage.out -covermode=atomic -v ./...
+
+.PHONY: clean
+clean:
+	@rm -rf docs
+	@rm -f machine.go
+
+.PHONY: snake2camel
+snake2camel:
+	@awk -i inplace '{ \
+	while ( match($$0, /(.*)([a-z]+[0-9]*)_([a-zA-Z0-9])(.*)/, cap) ) \
+	$$0 = cap[1] cap[2] toupper(cap[3]) cap[4]; \
+	print \
+	}' $(file)