Merge pull request #37 from girtsf/fix-build-2

fix build: add missing include to screen.cpp

src/screen.cpp

@@ -31,6 +31,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include "mesh-pb-constants.h"
 #include "NodeDB.h"
 #include "main.h"
+#include "configuration.h"
 
 #define FONT_HEIGHT 14 // actually 13 for "ariel 10" but want a little extra space
 #define FONT_HEIGHT_16 (ArialMT_Plain_16[1] + 1)