Upgrade Doxygen configuration files for Doxygen 1.8.1, fix broken stylesheet and footer HTML, add explicit spacing into documentation code fragments to prevent Doxygen from removing empty lines in the output.

LUFA/DoxygenPages/SoftwareBootloaderJump.txt

@@ -25,15 +25,15 @@
  *  #include <avr/wdt.h>
  *  #include <avr/io.h>
  *  #include <util/delay.h>
- *
+ *  
  *  #include <LUFA/Common/Common.h>
  *  #include <LUFA/Drivers/USB/USB.h>
- *
+ *  
  *  uint32_t Boot_Key ATTR_NO_INIT;
- *
+ *  
  *  #define MAGIC_BOOT_KEY            0xDC42ACCA
  *  #define BOOTLOADER_START_ADDRESS  (FLASH_SIZE_BYTES - BOOTLOADER_SEC_SIZE_BYTES)
- *
+ *  
  *  void Bootloader_Jump_Check(void) ATTR_INIT_SECTION(3);
  *  void Bootloader_Jump_Check(void)
  *  {
@@ -44,18 +44,18 @@
  *          ((void (*)(void))BOOTLOADER_START_ADDRESS)();
  *      }
  *  }
- *
+ *  
  *  void Jump_To_Bootloader(void)
  *  {
  *      // If USB is used, detach from the bus and reset it
  *      USB_Disable();
- *
+ *      
  *      // Disable all interrupts
  *      cli();
- *
+ *      
  *      // Wait two seconds for the USB detachment to register on the host
  *      Delay_MS(2000);
- *
+ *      
  *      // Set the bootloader key to the magic value and force a reset
  *      Boot_Key = MAGIC_BOOT_KEY;
  *      wdt_enable(WDTO_250MS);