[WIP]remove some unneeded argument in computing reconciliation line
[REF]refactor account widget to reduce rpc call
[FIX] account: structured communication have a higher priority
[FIX] account: display 5 proposals in the bank statement reconciliation widget
[FIX]remove unused variable
[FIX] account: display 5 items in the bank statement reconciliation proposals
[REM] removed some files wrongly commited preivously because of that bitchin 'git add .' command
[FIX]account reconciliation widget: add account_code to filter
Update CONTRIBUTING.md
Merge pull request #717 from odoo-dev/master-bnk-stmt-widget-fix-csn2

Master bnk stmt widget fix csn2

reduces a lot the number of rpc call in the bank statement widget interface.
Merge pull request #2 from odoo/master

[MERGE] New changes from Odoo repo