Add encoding to the <ceylon-compile> for the tests, to avoid the annoying portability error message.
Add encoding to the <ceylon-compile> for the tests, to avoid the annoying portability error message.

gijsleussink/ceylon,gijsleussink/ceylon,gijsleussink/ceylon,gijsleussink/ceylon,gijsleussink/ceylon