[IMP] rename invoice into account_invoice

bzr revid: al@openerp.com-20111001095720-h2prjp5due7rukir

addons/account/__init__.py

@@ -23,7 +23,7 @@ import account
 import installer
 import project
 import partner
-import invoice
+import account_invoice
 import account_bank_statement
 import account_bank
 import account_cash_statement