[REM] removed details_summary, sales_user, sales_user_today, payment_user reports...

[REM] removed details_summary, sales_user, sales_user_today, payment_user reports, wizards and rml
[REM] dead code:  pos_box_entries.py/xml, pos_box_out.py/xml, pos_return_view.py/xml
[ADD] lines, invoice, cashbox of the day, payment, receipt, users product reports converted to QWeb. Added YML tests for the bank statement reports.
[FIX] closed cashbox of the day sql using old fields in its queries, yml test not correctly generating an invoice from a pos order

bzr revid: sle@openerp.com-20140414104954-xj10wi640tyr3ufe