script parameters , content transfer, &  conf file

* Added "xslParameters" and "subFile" parameters, for handling
consecutive XSL processings (it's an adaptation of the code used for the
winword addin).
* Added a conf file (.ini) which will be used for defining script
parameters and customizing the interface (localization).
* Using the "insertTransferable" method from the LibreOffice API, in
order to transfer the content of the target document to the source
document without using the clipboard.