Bug 712

This would be a very useful option. when creating a new language. instead of
starting with the default xml template. I would argue that new languages should
start with a default xml language file. Chances are there will be more
information in the other language file eg. en-CA where most of our content
writing will occur.

I realize this would be no different that copying the english file and renameing
it to the language code you wish, but it would be better in the following ways:

* user would not have to do this, cause for error with rename it wrong.
* user can define the default language template file to start with. If the
language file does not exist than the doc_builder will us the blank default xml
template.
* this will encourage translation of documents. 

This new feature can be a turned on or off. meaning if ON the process will
consider seeing if the language default template exists. if OFF the process will
us the xml default template.