* [ADD] new module pos_slate;
* [REF] change file headers according to the new name of the module;
* [FIX] bad terminology;
* [REF] Oca convention;
* [REF] remove useless headers in init files, to reduce the size of the cloud;
* [REF] use new API;
[REF] move documentation from openerp manifest file to readme rst file;
[ADD] screenshot images and some sentences to describe the module;
* [FIX] bad folder for images;
* [FIX] readme file;
* [REF] improve description;
* [FIX] description;
* [REF] rename module and improve tests;
* [FIX] flake8
Sylvain LE GAL
Stéphane Bidoul (ACSONE)