prettier german letters (äöüßÄÖÜ)

glcdfont.c

@@ -139,7 +139,7 @@ static unsigned char  font[] PROGMEM = {
 	0x3A, 0x40, 0x40, 0x20, 0x7A, 
 	0x38, 0x54, 0x54, 0x55, 0x59, 
 	0x21, 0x55, 0x55, 0x79, 0x41, 
-	0x21, 0x54, 0x54, 0x78, 0x41, 
+	0x22, 0x54, 0x54, 0x78, 0x42, // a-umlaut
 	0x21, 0x55, 0x54, 0x78, 0x40, 
 	0x20, 0x54, 0x55, 0x79, 0x40, 
 	0x0C, 0x1E, 0x52, 0x72, 0x12, 
@@ -149,18 +149,18 @@ static unsigned char  font[] PROGMEM = {
 	0x00, 0x00, 0x45, 0x7C, 0x41, 
 	0x00, 0x02, 0x45, 0x7D, 0x42, 
 	0x00, 0x01, 0x45, 0x7C, 0x40, 
-	0xF0, 0x29, 0x24, 0x29, 0xF0, 
+	0x7D, 0x12, 0x11, 0x12, 0x7D, // A-umlaut
 	0xF0, 0x28, 0x25, 0x28, 0xF0, 
 	0x7C, 0x54, 0x55, 0x45, 0x00, 
 	0x20, 0x54, 0x54, 0x7C, 0x54, 
 	0x7C, 0x0A, 0x09, 0x7F, 0x49, 
 	0x32, 0x49, 0x49, 0x49, 0x32, 
-	0x32, 0x48, 0x48, 0x48, 0x32, 
+	0x3A, 0x44, 0x44, 0x44, 0x3A, // o-umlaut
 	0x32, 0x4A, 0x48, 0x48, 0x30, 
 	0x3A, 0x41, 0x41, 0x21, 0x7A, 
 	0x3A, 0x42, 0x40, 0x20, 0x78, 
 	0x00, 0x9D, 0xA0, 0xA0, 0x7D, 
-	0x39, 0x44, 0x44, 0x44, 0x39, 
+	0x3D, 0x42, 0x42, 0x42, 0x3D, // O-umlaut
 	0x3D, 0x40, 0x40, 0x40, 0x3D, 
 	0x3C, 0x24, 0xFF, 0x24, 0x24, 
 	0x48, 0x7E, 0x49, 0x43, 0x66, 
@@ -231,7 +231,7 @@ static unsigned char  font[] PROGMEM = {
 	0x00, 0x00, 0x00, 0xFF, 0xFF, 
 	0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 
 	0x38, 0x44, 0x44, 0x38, 0x44, 
-	0x7C, 0x2A, 0x2A, 0x3E, 0x14, 
+	0xFC, 0x4A, 0x4A, 0x4A, 0x34, // sharp-s or beta
 	0x7E, 0x02, 0x02, 0x06, 0x06, 
 	0x02, 0x7E, 0x02, 0x7E, 0x02, 
 	0x63, 0x55, 0x49, 0x41, 0x63,