[FIX] .travis.yml according to
https://github.com/OCA/maintainer-quality-tools/blob/master/sample_files/.travis.yml
[FIX] travis.yml according to
https://github.com/OCA/maintainer-quality-tools/blob/master/sample_files/.travis.yml
Merge pull request #25 from eLBati/8_fix_travis

[FIX] [8.0] .travis.yml according to last Yaml travis tets