Hi,
I'm a developer attempting to use APIv2 to make a web integration. Currently, I'm on rails trying to use the method /get_temporary_link to get a link to upload a file as a paperclip asset (using the very popular thoughtbot/paperclip gem).
Having some issues and I noticed the `filename` in the `content-disposition` response header is not being returned as a quoted string, e.g.
According to RFC 2616 (https://tools.ietf.org/html/rfc2616#section-19.5.1) the filename parameter should be a quoted string. Essentially:
THIS IS CORRECT
Content-Disposition: attachment; filename="purse_red.jpeg"
THIS IS NOT CORRECT (AND CURRENT IN APIv2)
Content-Disposition: attachment; filename=purse_red.jpeg
Is this a tiny bug we can show some love? =P
Cheers
epylinkn
CURL example in case it helps:
```
$ curl -I https://dl.dropboxusercontent.com/apitl/1/AABEjWHkjnPKJ0NrtkvkFYXotbSY_-0yZCchBZ-fvbD3dX3R05MALM_w9trebEG-2nNaYLUcOXp3BGFafuGBHvxnMMEGyUkQn6vH8T0AQesOMnkr3QkWzFPiPeHjG6QvXW41aGQYa9gWWypNoyr6X63bhJiw-nNLIq0tuqp4IB8ifBz-JaXK3zalY_Lhc4f4hTtbGatHftuKI5ZV9asdoD1RjgXpjnAnceqp3opC--A60fMmCoeeY3Y_ZOVzZMX-3bo | grep content-disposition
content-disposition: attachment; filename=purse_red.jpeg
```
