Make SPI and USART peripheral dispatch driver headers in preparation for a set of AVR32 peripheral drivers.

Fixed accuracy of the SERIAL_UBBRVAL() and SERIAL_2X_UBBRVAL() macros for higher baudrates (thanks to Renaud Cerrato).

Add more include protection macros to give the user warnings when they try to manually include private driver header files, instead of the public driver headers.

Fixed SerialStream driver blocking while waiting for characters to be received instead of returning EOF.

Fixed incorrect values of USB_CONFIG_ATTR_SELFPOWERED and USB_CONFIG_ATTR_REMOTEWAKEUP tokens (thanks to Claus Christensen).

Mark the AVRISP-MKII project descriptors as being both Bus Powered and Device Powered.

Copy over file level documentation of the peripheral drivers to the module level documentation.

Clean up Webserver project - add more Doxygen documentation for the new DHCP client functions and defines.

Fix TemperatureDataLogger and Webserver project builds.

Added explicit ADC channel masks for the standard set of ADC channels, as the single-ended channel MUX masks are not equal to the channel number on some AVR models. Changed demos to use the new channel masks when using the ADC driver.

Changed XPLAINBridge project to be both a USB to USART bridge and a PDI programmer, based on the state of a mode select pin.

Fixed a bug in the incomplete Webserver project, where the packet data was not being written to and read from the correct buffer address.

Fixed lack of support for the ATMEGA32U2 in the DFU and CDC class bootloaders

Changed incomplete Webserver project over to using the uIP timer library.

Add new TemperatureDataLogger project, a simple USB Mass Storage class Temperature Data Logger using the onboard Dataflash and Temperature sensor.

Add double banking property to LUFA powered projects in the Projects directory. Add guards to macro parameters to ensure that formulas passed as parameters don't mess up the internal macro structure.

Fixed AVRISP programmer demo -- can now connect to a target and read/write Sig/Lock/Fuse/OSCCAL bytes successfully.

Changed SPI_Init() to allow for the clock polarity and data sample modes to be set.

Changed Dataflash_Init() to no longer call SPI_Init() automatically.

Added V2Protocol handlers to the AVRISP project to enter/exit programming mode, and read/write fuses, lockbits, OSCCAL and Signature bytes.

Added ShutDown functions for all hardware peripheral drivers, so that peripherals can be turned off after use.

Added parameter directions to function parameter documentation.

Added new experimental FAST_STREAM_FUNCTIONS compile time option to speed up stream transfers at the expense of a higher FLASH consumption (needs testing to verify improved throughput).

Init function of the Serial driver is now static inline to product smaller code for the common-case of static init.

Fixed PREVENT ALLOW MEDIUM REMOVAL command issuing in the MassStorageHost demo using incorrect parameters (thanks to Mike Alex).

Fixed MassStorageHost demo broken due to an incorrect if statement test in MassStore_GetReturnedStatus().

Fixed incorrect HID interface class and subclass values in the Mouse and KeyboardMouse demos (thanks to Brian Dickman).

Capitolised the "Descriptor_Search" and "Descriptor_Search_Comp" prefixes of the values in the DSearch_Return_ErrorCodes_t and DSearch_Comp_Return_ErrorCodes_t enums.

Minor documentation improvements.

More documentation changes for better module-level documentation rather than file-level documentation.

Renamed Serial_Stream driver to SerialStream to remain consistent with the rest of the library's naming scheme for files.