[ADD] partner_firstname for v8
because it's working as is
[FIX] IntegrityError: column "lastname" contains null values
when creating or copying users
[IMP] partner_firstname - logging
[FIX] PEP8
[FIX] IntegrityError: column "lastname" contains null values
[FIX] partner_firstname - some PEP8
[FIX] partner_firstname - PEP8
[FIX] base_location PEP8
[FIX]  passport PEP8
[FIX] base_partner_merge PEP8
[IMP] _set_default_value_on_column avoiding useless queries
Merge pull request #14 from eLBati/8.0

[ADD] partner_firstname for v8