Fix release version from 3.0 to 3.0.0
Merge branch 'feature/maven-deployment' into 3.0.0
Continuous Integration using FOSS travis-ci.org

Travis in java profiles with Ant build files calls by default the test
target, so I included the JSLint check in this test target.
Test & Fail on JavaDoc Warnings & Errors
Merge tag 'v3.0.0' to allow this a good rebase target

For providing changes which should go into 3.0.x and 3.1.x use v3.0.0 as
branch spinoff.

This merge is a pure marker merge to tell Git, that v3.0.0 is fully included
in v3.0.x and v3.1.x
Merge branch 'feature/travis-ci' of https://github.com/exxcellent/echo3

Enables continous integration using the amazing travis-ci.org
service for FOSS projects.
Change submodule repository to HTTPS based URI.

Obviously HTTPS repo URIs cause less issues on fetching
the repository than Git repo URIs (firwalls/proxies).
Merge branch '3.0.x' into exxcellent