Fix body of put request for updating user watermark. 
Bump version to 1.5.3
merge
Upgraded trubl
Merge branch 'master' of github.com:Tout/trubl into develop
Added client methods to cover new API endpoints
PLAT-532 - adding unit tests for the /me/touts/* endpoints
bump the patch version
Merge remote-tracking branch 'origin/feature/tout_publication_status_endpoints' into develop