Bump Travis versions (#1584)

* Bump Travis versions * Fix gotest failures

Author: HaraldNordgren

.travis.yml

@@ -5,6 +5,7 @@ os:
  - osx
 
 go:
+ - 1.11.x
  - 1.10.x
  - 1.9.x
  - 1.8.x

pkg/models/zk/zkclient.go

@@ -228,7 +228,7 @@ func (c *Client) CreateEphemeral(path string, data []byte) (<-chan struct{}, err
 log.Debugf("zkclient create-ephemeral node %s failed: %s", path, err)
 return nil, err
 }
-log.Debugf("zkclient create-ephemeral OK", path)
+log.Debugf("zkclient create-ephemeral OK: %q", path)
 return signal, nil
 }