[ADD] .travis.yml and travis_install_ve_nightly files added.
[ADD] addons-vauxoo repo added.
[REF] From ovl_all to ovl.
[REF] sudo pip install libxml2-python command added.
[REF] --allow-external command added.
[REF] pip instal changed for apt-get install.
[REF] From ovl to ovl_all.
[ADD] addons-vauxoo packages added.
[ADD] Container commit added.
Merge pull request #5 from vauxoo-dev/7.0-travis-file-dev-sabri

[ADD] .travis.yml and travis_install_ve_nightly files added.