Confirm info-bar reload when document has modifications
Only close reload infobar if the response succeeded
Update of German translation
API: Rename document_reload_file -> document_reload_force

New name is clearer against document_reload_prompt.
Add deprecated alias.
Merge pull request #334 from ntrel/confirm-infobar-reload

Confirm infobar reload when document has modifications
Add comment about throwing away read-only for renamed documents
Update doc->priv->protected description now saving is supported
Notify user when trying to save read-only document