[FIX] travis: update travis file to match the one in https://github.com/OCA/maintainer-quality-tools/blob/master/sample_files/.travis.yml
[FIX] travis: exclude account_statement_ext_point_of_sale (addon without tests but depends of point-of_sale) When this addon is installed, odoo install account_statement_ext first and then point_of_sale. Since account_statement_ext define the profile_id as required, it becomes impossible to install the demo data from point_of_sale without integrity error. By excluding this addon from tests, all tests pass!
Merge pull request #25 from acsone/7.0-fix-travis

[FIX] travis: update travis file to match the update one