Merge branch 'release/0.14.1' into develop
Update Cowboy to 0.8.4
Merge pull request #8 from essen/cowboy-0.8.4

Update Cowboy to 0.8.4
Support to remove a registered object with 'touch-command' from the cache
Roll leo_gateway version 0.14.2
Merge branch 'release/0.14.2'