Merge pull request #69 from sud80/ios_fixes

Fix filename for multipart upload

Author: radeva

nativescript-background-http/background-http.ios.ts

@@ -317,7 +317,7 @@ class MultiMultiPartForm {
 			if (!this.fields[i].filename) {
 				results += CRLF + CRLF + this.fields[i].value + CRLF;
 			} else {
-				results += '; filename="' + this.fields[i].filename + '"';
+				results += '; filename="' + this.fields[i].destFilename + '"';
 				if (this.fields[i].mimeType) {
 					results += CRLF + "Content-Type: " + this.fields[i].mimeType;
 				}
@@ -338,7 +338,7 @@ class MultiMultiPartForm {
 
 		}
 		// Add final part of it...
-		results += CRLF + "--" + this.boundary + "--" + CRLF;
+		results += "--" + this.boundary + "--" + CRLF;
 		tempString = NSString.stringWithString(results);
 		newData = tempString.dataUsingEncoding(NSUTF8StringEncoding);
 		combinedData.appendData(newData);