update ci configuration

from the sample in maintainer-quality-tools
add ci badges to README
fix final newline
travis: 7.0 -> 8.0
cherry picked @jgrandguillaume's porting notes
Merge pull request #5 from gurneyalex/8.0

cherry picked @jgrandguillaume's porting notes
reactivate logistic_order
view respacing
port models and method to API 8.0
replace mako template by qweb template base on sale order report
break transport_plan dependancy
use xpath in overloaded report

this seems to be required for qweb template overloading
port test to 8.0
add an init() method to fix errors at install time

this method will fix the existing sale_order records by setting
the consignee_id to the admin user.
add dependency on sale_quotation_sourcing

this module lives in OCA/sale-workflow
[PEP8]
remove dependancy on stock_location_ownership
set string override in pot file
improve manifest by adding summary, description and contributors plus updating copyright years
Merge pull request #7 from yvaucher/8.0-logistic_order

8.0 logistic order