SS4 Upgrade

[gordonbanderson]

I've never used this module before, and I'm not sure how to set up the uploader with multi file relation, as such I've not tested that. However it is working with a single file.

[wilr]

@gordonbanderson see also #79. Don't care which one is merged just be good to one merged @unclecheese

[gordonbanderson]

hi @unclecheese ,

I'd go with @wilr pull request for now, this PR I got chunked file uploads working, but I was not 100% sure of the rest of the functionality and I'd also broken non chunked uploads :(

I had some major upheaval life wise just after doing this (my father died, I moved back to the UK), and my head is only now returning to 'code mode'. I'm currently traveling, will aim to get back to full time coding in just over a month and sort out my various SS4 upgrades. It's another +1 for the @wilr PR

Cheers

Gordon

[gordonbanderson]

Feel free to close this PR, I am not currently in a position to support it, and I will have a look at the chunking aspect when I am back in the UK

[gordonbanderson]

see also silverstripe/silverstripe-framework#5720