Bring travis test up to date

Flake and coveralls are installed and run automatically
Fix security error
Merge pull request #24 from savoirfairelinux/travis

Bring travis test up to date
Merge https://code.launchpad.net/~savoirfairelinux-openerp/openerp-shared/7.0/+merge/238441
Remove unit module testing so it can be fixed in another PR
Merge pull request #26 from savoirfairelinux/shared_fix

Merge https://code.launchpad.net/~savoirfairelinux-openerp/openerp-shared/7.0/+merge/238441
removed salary_rule record because it makes hr_payroll_account test fail
Reactivate UNIT_TEST