(cherry picked from commit 811310fd06ca8589fa8e87da6b8bdaea403bf660)
[MIG] Improve the code and fix some bugs
(cherry picked from commit 5bcdfe3f748884d650120f76d1642b820d0a800b)
[FIX] Change the parent for the menu Credit Control (the previous parent menu was not in the Odoo standard)
(cherry picked from commit 826257ce7b5248956d838cae9c94a012d550327e)
[FIX] Fix a lot of errors to respect pep8
(cherry picked from commit bed6cf35d665eea32122c91d33322af141053f29)
[FIX] Respect PEP8
(cherry picked from commit 6353eef0dce1bfe5db8a38d3410d1cc7f833fa10)
* Report use precise mode by default
* date_entry fields on line model to be used by report or in next MP on filter group by
* reporting layer, + add hook function to get contact address
* credit control mail are not in plain text but send as attachement
* policy level name is now translatable as it is use in report and mail
* permission on invoices because onetomany widget load data even if hidden ...
* translation files + lang source
* french translation
