* ATS-421 : ATS-400: Create Travis build for "alfresco-transform-core"
- rename mvn profile from 'enterpriseDocker' to 'local'
- add config to publish docker image on both Quay and Docker
- remove unused 'master' profile - similar to ATS, publish images only from master branch and on Release
- update <distributionManagement> to publish artefacts to Nexus public (rather than Enterprise Releases)
- add travis build configs
- include SP branches to travis build
- add documentation on build&release process
- updates based on initial review comments, including
-- fix typo (s/successful/failed)
-- add example error status code
-- add link to Alfresco SFS API spec
- also slight re-wording of /transform description
