Check if the user Overwrite an image
Mantis Issue 122, reported by mgrizonnet, assigned to pimbo, created: 2009-11-23
Need to check if there is an existing file (same path) when we save an image. By default, Monteverdi erases existing file.
1259044207 - christopSame behavior should apply also to vector data.
1290694921 - PatrickDone for the WriterModule and the WriterMVCModule.
1290702279 - grizonnetmnot show any differences with Monteverdi writer module with revision a6601840c5d4
1290705528 - Patrickok with revision c5229f62ec37.