Merge pull request #1 from ricardogsilva/fix_wsgi

tweaked wsgi script
Merge remote-tracking branch 'origin/unquote_get_parameters'
Merge branch 'master' of https://github.com/geopython/PyWPS
allow setting configuration files when instantiating the pywps class
Merge pull request #18 from ricardogsilva/specific_configuration

Use the configFiles input argument to PyWPS