message: fix unlimited max size for http file upload
diff: @@ -144,7 +144,7 @@ jsxc.fileTransfer.showFileTooLarge = function(bid, file) {
  jsxc.fileTransfer.fileSelected = function(jid, msg, file) {
  var bid = jsxc.jidToBid(jid);
  var httpUploadOptions = jsxc.options.get('httpUpload') || {};
  - var maxSize = httpUploadOptions.maxSize || 0;
  + var maxSize = httpUploadOptions.maxSize || -1;
  if (file.transportMethod !== 'webrtc' && jsxc.xmpp.httpUpload.ready && maxSize >= 0 && file.size > maxSize) {
  jsxc.debug('File too large for http upload.');
  