#261 Aborting an OFX import throws too many error messages
Aborting an OFX import shows several (error) messages instead of just aborting the import.
Example: sometimes when I start an OFX import, I select the wrong file, such as one I've already imported. On the Account selection dialog, I notice it's not for the account I expected, and hit the abort button. At that point, instead of just quitting the import process, I get the statement stats window (with all 0 amounts), then the "Importing process terminated unexpectedly" message, and then the "Unable to import /home/jack/finance/LLcheck200906.ofx using the OFX importer plugin. The plugin returned the following error:" message (with no error actually shown). Since I intentionally aborted the import, it (correctly) didn't import anything and it isn't really an error, so it doesn't make sense to see any of these three messages, other than perhaps an "Import successfully aborted."