Update src/FSNConnection.m

No empty line / seperator after parameter value. http://www.ietf.org/rfc/rfc1867.txt doesn't specify this newline, and Amazon S3 doesn't support newlines (it's treated as part of the value)
Merge pull request #7 from wardbekker/master

Incorrect empty line before next boundary
Added arrays to [NSDictionary urlQueryString]

Added a block that will verify whether a value is an acceptable class, and
extended [NSDictionary urlQueryString] to support arrays.
added default image to demo to silence xcode warning
silenced warnings for mac demo
added arrayFromJSONWithError convenience method
Xcode 4.6 settings update
remove myself from code signing settings