[IMP] improve Homogenize the terms
[IMP] changes set Tag term instead of category
[MERGE] merge with main branch
[IMP] improve code according to PEP8
[IMP]: Improve reference terms for partner
[MERGE]: Merge with addons
[MERGE] merge with main branch
[MERGE]: Merge with addons branch
[IMP]: Improve Reference Terms in account module
[MERGE]: Merge with addons branch
[MERGE]: Merge with latest addons
[MERGE] Sync with trunk
[MERGE][IMP] crm/sale_crm: Terminology
Replacement of the term "category" by "tag", for the sake of consistency
[MERGE] Sync with trunk
[MERGE][IMP] invoice/sale: Terminology uniformisation