add a smiley when printing helloworld

Signed-off-by: Nicolas Dechesne <ndec@linux.com>
capitalize helloworld properly when printing

Signed-off-by: Nicolas Dechesne <ndec@linux.com>
Merge branch 'dev'

Signed-off-by: Nicolas Dechesne <ndec@linux.com>

Conflicts:
	helloworld.c