Dont overwrite Existing Files

[Zemoj]

Fix for issue #11 without adding new features.

[spreadred]

I don't think this PR should be merged unless it is paired with a corresponding config option to either enable or disable this functionality.

Perhaps, this should be better tackled by adding a configuration option to determine whether to use recursion or not.

[Zemoj]

I'm not sure I know a reason it should ever be overwriting existing files? Under normal circumstances it would never come up.

[spreadred]

True, I can't think of a normal circumstance where the desired behavior is to overwrite existing files but since this has been the functionality (whether intended or not) since the beginning, perhaps other people are somehow taking advantage of this overwrite functionality for automation or some other functionality?

That's sorta the basis for my suggestion of adding a config option to control this.

[chrishuan9]

I will merge this request as soon as I added the controls in the UI to enable / disable this functionality. I am currently swamped with personal things which don't allow me to spend any time on further improving / fixing the plugin. I'm not saying that I won't keep improving it but you will need to be a bit patient.