Merge tag '1.2.0' into develop

New release
Added extra debug messages when attaching to http server and to io instance
Update README.md
Update README.md
Update README.md
Update README.md
moves myelements to $myelements.socket
Version bumped
Merge branch 'release/1.3.0'
Merge tag '1.3.0' into develop

1.3.0
Merge branch 'develop' of https://github.com/myelements/myelements.jquery into develop