Fixing issue #45 :

[redcapua]

Fixing issue #45 :
Allow export/convert without header row
Some minor fix.

[jakob]

Thanks for the Pull request!

The export button should not change self.csvConfig.

But I think there is a bug in -dataWithCSVConfig:. It checks self.csvConfig, instead of using the passed parameter config when checking whether to write the headers. Then it should work.

PS: You've committed a lot of whitespace changes. In the future, please try to clean up your commits before submitting pull requests. (You can rewrite git commits from the command line, or you can use GitUp, it is a great GUI for cleaning up commits)