In reference to issue #146
Also added the `deleteMediaFile` when dealing with urls.
The new functionality of `writeData` means that is there is a name conflict it will rename the file. This way the behavior of your api does not change.
Only potential issues I see with this is that the file is `trashed` but not deleted. So is only cleared up on the usual clear up.
Test locally using my own Anki install at `2.1.22` and POST man to create new media
22a58bb707