Version 1.2.0 of Lightweight Mesh update

Release Version: 1.2.0
Date: February 6, 2014

Contents
- Lightweight Mesh example applications:
  EdDemo,
  WSNDemo,
  Peer2Peer,
  SimpleRemote,
  Tester,
  Application Template
- Documentation
  AVR2130: Lightweight Mesh Developer Guide
  AVR2131: Lightweight Mesh Getting Started Guide
- Lightweight Mesh source code

System requirements - Supported Compiler/Tools
- Atmel Studio 6.1
- AVR Toolchain (included in Atmel Studio 6.1 installer package)
- ARM Toolchain (included in Atmel Studio 6.1 installer package)
- IAR Embedded Workbench for AVR version 6.11.1

Supported Boards / Devices
- ATmega128RFA1
  * RCB128RFA1 v6.3.1 
  * ATAVR128RFA1-EK1
- ATmega256RFR2
  * RCB256RFR2
  * ATmega256RFR2 Xplained Pro
- AT86RF231
  * RCB231ED v4.1.1
  * XMEGA-B1 Xplained with Rz600 AT86RF231 radio module
  * SAMD20 Xplained Pro with Rz600 AT86RF231 radio module
- AT86RF212
  * XMEGA-B1 Xplained with Rz600 AT86RF212 radio module
- AT86RF230B
  * ZigBit (ATZB-24-B0, ATZB-24-A2)
- AT86RF233
  * SAMD20 Xplained Pro with REB232-XPRO radio module
  * ZigBit-X0 (ATZB-X0-256-3-0-C)

Changes to previous version
- Added support for AT86RF233
- Added support for ATxmega256a3u on ZigBit-X0 module
- SAMD20 HAL moved to ASF headers
- PHY structure redesigned to use polling for the interrupts
- PHY Energy Detection and Random Numbers Generator APIs are changed
  to return the requested value immediately
- PHYs for ATmega128RFA1 and ATmega256RFR2 are renamed to
  generic versions for all devices in the family (ATmegaRFA1 and
  ATmegaRFR2 respectively)
- Fixed an overflow bug in nwkFrameNext() when last buffer is allocated
- Fixed random number generator on ATmega256RFR2 with RPC mode enabled