Change submodule repository to HTTPS based URI.

Obviously HTTPS repo URIs cause less issues on fetching
the repository than Git repo URIs (firwalls/proxies).
Update submodule pointer to include new Eclipse project & JARs.
Merge branch '3.0.x' into exxcellent
Conflicts:
	.gitmodules
Refocus Sync.ListComponent's select element if it was focused before renderUpdate.

renderUpdate removes the old select field and creates a new one,
disregarding the previous browser focus state. This bugfix focuses the
new select field if the old one was focused.
Merge branch 'hotfix/selectfield-focus' of github.com:exxcellent/echo3 into exxcellent