Fix echo dependency and add go 1.11 build

Author: wwwdata

.travis.yml

@@ -4,6 +4,7 @@ go:
   - "1.8"
   - "1.9"
   - "1.10"
+  - "1.11"
 
 sudo: false
 
@@ -16,7 +17,7 @@ install:
     # optional dependencies
   - go get -u github.com/gin-gonic/gin
   - go get -u github.com/gorilla/mux
-  - go get -u github.com/labstack/echo/...
+  - go get -u github.com/labstack/echo
 
 script:
   - ginkgo -r -cover --randomizeAllSpecs --randomizeSuites --failOnPending --trace --race --progress