Merge tag '1.4.0' into develop

backend host con now be configured
Update README.md
changed the mechanism by which dataupdate messages are past to the client
Renamed variable client for socket . Closes #9
renamed CustomEventHandler tu ElementsEventHandler
Merge branch 'develop' of https://github.com/myelements/myelements.jquery into develop
Update README.md
Merge branch 'develop' of https://github.com/myelements/myelements.jquery into develop
Merge branch 'master' into develop

Conflicts:
	README.md
bumped version
Merge branch 'release/1.4.1'