Fix #1841 sails upload error

[elesdoar]

Fix error with SailsJS

https://github.com/balderdashy/skipper#text-parameters

[danialfarid]

Could you elaborate more.

[elesdoar]

Sails requires that ng-upload send any text parameter before that multipart data.

It is important to realize that the benefit above relies on a crucial, simplifying assumption: that user agents send any text parameters before the first file parameter in the multipart HTTP request body. For instance, in an HTML form that means putting all of your tags after the other inputs. If you don't want to lay your form out that way, you'll want to use AJAX to submit it instead (see jQuery File Upload / Angular File Upload) or listen for the form's "submit" event to reorder the inputs before submitting the form to the server.