#40 Display of file content in browser

I encountered an issue when displaying file content in the browser. For me, the displayed content was somehow 'cached' by the browser and changes of the file on the server side were not updated. Deleting the cache of the browser did not fix the issue, only removal of 'Cookies and Site Data' forced a download of the new versions of the file. Is the 'caching' of the file content as site data a configuration that can be changed on the gin side or is this purely a browser issue? This effect occurred with `Firefox 82.0 (64-bit)` Affected file (and previous versions): https://gin.g-node.org/NeuralEnsemble/ephy_testing_data/src/7b77a2dfdf73e72855ffc524f364d7196c966227/neuralynx/Cheetah_v5.6.3/plain_data/CSC1.txt

It might be possible to make it more reliable server side, but I think it's more likely on the browser side. I'll look into it.