Add support for the new MEGA B series devices.

LUFA/DoxygenPages/ChangeLog.txt

@@ -9,7 +9,8 @@
   *  \section Sec_ChangeLogXXXXXX Version XXXXXX
   *  <b>New:</b>
   *  - Core:
-  *   - None
+  *   - Added support for the XMEGA A3BU Xplained board.
+  *   - Added support for the new B series XMEGA devices.
   *  - Library Applications:
   *   - Added User Application APIs to the CDC and DFU class bootloaders
   *   - Added INVERTED_ISP_MISO compile time option to the AVRISP-MKII clone project (thanks to Chuck Rohs)

LUFA/DoxygenPages/DeviceSupport.txt

@@ -343,6 +343,26 @@
  *   <td bgcolor="#00EE00">Yes</td>
  *   <td bgcolor="#EE0000">No</td>
  *  </tr>
+ *  <tr>
+ *   <td>ATXMEGA64B3</td>
+ *   <td bgcolor="#00EE00">Yes</td>
+ *   <td bgcolor="#EE0000">No</td>
+ *  </tr>
+ *  <tr>
+ *   <td>ATXMEGA128B3</td>
+ *   <td bgcolor="#00EE00">Yes</td>
+ *   <td bgcolor="#EE0000">No</td>
+ *  </tr>
+ *  <tr>
+ *   <td>ATXMEGA64B1</td>
+ *   <td bgcolor="#00EE00">Yes</td>
+ *   <td bgcolor="#EE0000">No</td>
+ *  </tr>
+ *  <tr>
+ *   <td>ATXMEGA128B1</td>
+ *   <td bgcolor="#00EE00">Yes</td>
+ *   <td bgcolor="#EE0000">No</td>
+ *  </tr>
  *  </table>
  *
  *  \section Sec_XMEGASupport_Boards Supported Atmel Boards