add i2c error counter in status bar

_locales/en/messages.json

@@ -108,6 +108,9 @@
     "statusbar_packet_error": {
         "message": "Packet error:"
     },
+    "statusbar_i2c_error": {
+        "message": "I2C error:"
+    },
     "statusbar_cycle_time": {
         "message": "Cycle Time:"
     },

js/msp.js

@@ -173,6 +173,7 @@ MSP.process_data = function(code, message_buffer, message_length) {
             CONFIG.profile = data.getUint8(10);
 
             sensor_status(CONFIG.activeSensors);
+            $('span.i2c-error').text(CONFIG.i2cError);
             $('span.cycle-time').text(CONFIG.cycleTime);
             break;
         case MSP_codes.MSP_RAW_IMU:

js/serial_backend.js

@@ -32,8 +32,8 @@ $(document).ready(function() {
                     GUI.connected_to = false;
 
                     // Reset various UI elements
-                    $('.software-version').html('0.0');
-                    $('span.cycle-time').html('0');
+                    $('span.i2c-error').text(0);
+                    $('span.cycle-time').text(0);
 
                     MSP.disconnect_cleanup();
                     PortUsage.reset();

main.html

@@ -123,6 +123,9 @@
             <div>
                 <span i18n="statusbar_packet_error"></span> <span class="packet-error">0</span>
             </div>
+            <div>
+                <span i18n="statusbar_i2c_error"></span> <span class="i2c-error">0</span>
+            </div>
             <div>
                 <span i18n="statusbar_cycle_time"></span> <span class="cycle-time">0</span>
             </div>