Do not validate until user select one document

getMovementList will already return appropriate movements, this is
redundancy and it prevent using DeliveryRootSimulationRule for some
Orders on some projects

python 2.7.9 validates certificates by default.

1: Resize gadget if it's declared in  iframe
2: Add getContent test

This action just associates all transactions that are not reconciled and there is no such thing as "initial banking reconciliation"

This is for now an had-hoc working implementation.

In order to make it more maintainable, it will probably be required to handle attachment's mime type correctly in the JS.

Ensure only jIO API is used.
Allow to access all ERP5 functionnality with getAttachment.
Improve IE support.