Update to released EG versions and fix some bugs

src/main.rs

@@ -152,9 +152,11 @@ fn main() -> ! {
 
     let mut cx = 20;
     let mut cy = 20;
+
     let t = Text::new("Hello Rust!", Point::new(20, 16))
         .into_styled(TextStyle::new(Font6x8, BinaryColor::On));
 
+
     // Very brief delay before the loop, just to show how
     delay.delay_us(10_u8);
 
@@ -186,13 +188,13 @@ fn main() -> ! {
             .into_styled(TextStyle::new(Font6x8, BinaryColor::On));
 
         display.clear();
-        c.draw(&mut display);
-        t.draw(&mut display);
-        count.draw(&mut display);
+        c.draw(&mut display).unwrap();
+        t.draw(&mut display).unwrap();
+        count.draw(&mut display).unwrap();
         display.flush().unwrap();
 
         // Control the horizontal position with the knob
-        cx = counter.min(0).max(DISPLAY_W);
+        cx = counter.max(C_RADIUS/2).min(DISPLAY_W-C_RADIUS/2);
         // Wrap the ball back to the top when it falls off the bottom
         cy += 1;
         if cy > (DISPLAY_H + C_RADIUS) { cy = -C_RADIUS };
@@ -211,8 +213,8 @@ fn init_encoder_pins(
         clk.trigger_on_edge(exti, Edge::RISING_FALLING);
         clk.enable_interrupt(exti);
 
-        CLK_PIN.borrow(cs).replace(Some(clk)).unwrap();
-        DT_PIN.borrow(cs).replace(Some(dt)).unwrap();
+        CLK_PIN.borrow(cs).replace(Some(clk));
+        DT_PIN.borrow(cs).replace(Some(dt));
     });
 }