EOFError (bad content body) with special characters (maybe only on ruby 1.9.2)

[lou]

when I submit a query with a file and with another params which contains special characters (ie: éèîü etc ..) it breaks.

EOFError (bad content body)

I don't know if it's the right way to fix it but it works !

Note: tested only on ruby 1.9.2

[drbrain]

14 is likely a better fix for this problem

[nicksieger]

We'll probably need to do some charset/encoding changes in the future. But for now, #14 does indeed fix this slightly better.