If no adherent number is set on partner bank, still match regex
Merge pull request #45 from mdietrichc2c/check_adherent_number

If no adherent number is set on partner bank, still match regex
Add commercial_partner_id on supplier invoice and
set it with on_change_partner_id in order to have
company bank account in the related field selection
[FIX] pep8
Merge pull request #54 from vrenaville/imp_commercial_partner_id_bank

Add commercial_partner_id on supplier invoice and
Cherry picking commits for importing the statement_base_import module
Removed lsv_dd module wich will be in separate branch.
PEP8
Added external dependencies check.
PEP8
Add xml to attachments for postfinance statement import.
[FIX] raiffeisen line parsing, get only last element for amout parsing
[FIX] binary file postfinance import bug
Added example files with import unit tests. Corrected some bugs.
Fixed importation order problem. Added missing modifications to commit.
Cherry pick from LP branch
Removed module account_statement_base_import which is in another branch.
Add bvr ref generation if account is IBAN for LSV
PEP8 fixes. Add postfinance setup description into module description.
Add banking dependency in .travis