Correct UnicodeDecodeError in python2
Correct UnicodeDecodeError in python2

In wfs_MapServerWFSCapabilities.txt, the response contains non ascii
characters. We now precise the encoding the the response is correctly
decoded.

KeyproOy/OWSLib,geopython/OWSLib,kwilcox/OWSLib,ocefpaf/OWSLib,bird-house/OWSLib,dblodgett-usgs/OWSLib,QuLogic/OWSLib,jachym/OWSLib,Jenselme/OWSLib,geographika/OWSLib,b-cube/OWSLib,robmcmullen/OWSLib,gfusca/OWSLib,JuergenWeichand/OWSLib,mbertrand/OWSLib,kalxas/OWSLib,tomkralidis/OWSLib,menegon/OWSLib