Note: it's not RMB, the official abbreviation is CNY

This reverts commit 042bd6bc.

This reverts commit fca2f842.

This reverts commit 7698537e.

This reverts commit 974c3763.

This reverts commit f629cf50.

This reverts commit 7c040914.

BTW, Chinese currency official abbreviation is CNY. Maybe I should
submit the currency_module/CNY to nexedi/erp5 repository

test.erp5.testSlapOSSubscriptionSkins

test.erp5.testSlapOSSubscriptionSkins

We can create reversal sale invoice transactions as payments to release allocation the allocation of subscription related instances.

Because it's sometimes hard to find out in the full output of slapos
node instance which partition failed, report a more concise summary at
the end.

/reviewed-on !134

Add the corresponding test.

  * fix JSLint
  * prevent the script from crashing when there is no data (no
partitions or no computer)