[IMP] Courtesy of kevin3274 issue 1258: orderpoint should have float multiple instead of integer
[FIX] openerp.api.Environment: move recomputation todos into a shared object

This fixes a bug which is usually triggered in module account_followup, but
does not occur deterministically.  Some recomputations of computed fields are
apparently missing.  Environment objects containing recomputations todos and
kept alive by a WeakSet, are removed by the Python garbage collector before
recomputation takes place.  We fix the bug by moving the recomputation todos in
a non-weakref'ed object.
Merge pull request #2178 from odoo-dev/8.0-wmsmultiop-jco

[IMP] Courtesy of kevin3274 issue 1258: orderpoint should have float mul...
[FIX] account: invoiced button values must be calculated as the user

Otherwise, if done with the superuser:
 - The multi-company rules won't work, the user will have the amount of all invoices, cross-companies
 - The amount currency will always be the currency of the superuser
[FIX] account: several fixes on the new bank statement reconciliation widget
[FIX] correct css computation to remove unnecessary toolbar