Conflicts:
	tcl/intranet-cost-procs.tcl

Previously lc_numeric used the default (user) locale for formatting,
which is inconsistent given that the rest of the page has en_US
number formatting.

- Passing on variables to menu tabs
- FinancePortlet: Now showing by default effective_date instead of due_date
- FinancePortlet: Fixed open/close logic
- FinancePortlet: Fixed issue adding sub-types of PurchaseOrder to summary

The index was there with the right name, but indexing cost_type_id

- Now showing timesheet costs as closed by default

  from which the current document was created

- In invoices/view.tcl showing the related customer purchase orders
- Allowing to promote a normal invoice to a timesheet invoice, so that
  the report period is shown