Slight changes to encoding

This change has been tested:

   * http://i.imgur.com/nchf0Cv.png
   * http://i.imgur.com/133PIwB.png

It might address this concern,
https://github.com/polaris-/dwc_network_server_emulator/commit/a6d254bdd58db2adc94d478e5f67704f200522d4#commitcomment-9125615

....or at least narrow down what's going on since I'm more confident the UTF encoding/decoding is not horrendously broken based on those screenshots.