[FIX] pep8
[ADD] LICENSE file
[ADD] .gitignore
[IMP] align .travis.yml with maintainer-quality-tools sample + README badges
[FIX] headers and license, end of files
[FIX] line end
Merge pull request #1 from acsone/7.0

Forward port of 6.1 branch
[MIG] 8.0 travis and badges
[MIG] Add the Luxemburg menu item in Accouting Reports

This menu entry was present in 7.0 as the parent of the VAT declaration,
but the VAT declaration is now gone and so is it's parent menu. So we
restore it here.
Merge pull request #3 from acsone/8.0

Forward port 7.0 until e103aff