MEDIUM: Added a timeout of 30 seconds on createOrUpdateFileFromURL so
that when a server takes too long to answer we continue.
IMPORTANT: Fixed issue with external resources causing SaveException
errors.
This issue had been raised by BICS on november 8  2013 (see e-mail at
14h54)
LOW: Improved error message when entity message is empty.
LOW: If no post build option is activated, we don't require output path
Fixed a few extra calls that were cluttering the error messages from
Velocity