New miniaturized bugOne board

Creating new "mini" bugOne board, with some added features:
   * MOSFET for complete poweroff of RMF12B
   * ISP moved further away from the shield
   * smaller LDO regulator (MCP1700). This might be changed in a future version
   * added a GND via near the antenna

Next features:
   * holes to attach the board
   * jumper to short the MOSFET (in case a more usual sleep mode is desired)
   * add missing MOSFET control from the AVR
   * rotate all names