Started implementing the low level PDI protocol in the AVRISP project, for XMEGA device programming.

Removed John Steggall's software UART code from the XPLAIN Bridge project due to reliability issues.

Factor out all the ISP related code into a seperate ISPProtocol set of files in the AVRISP Clone programmer project, to clearly seperate out the programming protocols when PDI programming is implemented.

Rename the V2Protocol command handlers in the AVRISP project in preperation of XMEGA PDI programming support.

Added CDC_Host_Flush() function to the CDC Host Class driver to flush sent data to the attached device.

Remove dependancies from the LowLevel demos to the ClassDriver demos, since the use of ClassDriver headers now outputs an error when NO_STREAM_CALLBACKS is used.

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.

Fix up demo documentation device compatibility list to be as general as possible to reduce changes required as Atmel releases more devices within the same USB AVR series.

Added pinouts to the AVRISP project for a standard ISP 6 Pin header to make construction of a standard ISP programmer easier.

Doxygen fixes to \param directives to give data direction in all projects. Make HID item filtering routines clearer in the HID WithParser demos.

Remove USE_NONSTANDARD_DESCRIPTOR_NAMES compile time token, split out standard descriptors into seperate USB_Descriptor_* and USB_StdDescriptor_* structures so that both can be used within the one project.

Add guard to the HID Host Class driver SetProtocol command, to ensure that the device supports boot protocol mode before issuing the request.

Add in new invalid event hook check targets to project makefiles to produce compilation errors when invalid event names are used in a project.

Re-add in flip, flip-ee, dfu and dfu-ee targets to project makefiles (thanks to Opendous Inc.)

Fix allowable F_CPU values comment in project makefiles.

Move ADC VTARGET sampling to a new V2Params_UpdateParamValues() in the AVRISP project so that there is a central place where all non-PC set target values can be updated easily.

Increase AVRISP command timeout to 240ms up from 150ms to prevent some ISP commands from timing out too early.

Add check to the PROGRAM FLASH ISP and PROGRAM EEPROM ISP handler to return an explicit error when the host attempts to write more data than the device is able to buffer.

Make WaitWhileBusy function in the AVRISP project more explicit about how it sends and receives the busy check command.

Reduce size of PROGRAM FLASH ISP or PROGRAM EEPROM ISP buffer to 256 bytes to prevent blowing the stack on the smallest USB AVR models.

Fixed issue in AVRISP project where the target RESET line was being toggled before it was tristated, causing problems synchronising to some targets (thanks to Mike Alex).

Added pinout information to the AVRISP project.

Fixed Programmer's Notepad project file to reflect new location of AVRISP project.

Make AVRISP project build again - fix incorrect preprocessor directive in V2Protocol.c, fix makefile LUFA_PATH.

Move AVRISP Programmer project to a new Unfinished subdirectory of Project while it is under development.

Enhancements to the AVRISP Programmer project to attempt to get AVRStudio to communicate with the device.

Added new Endpoint_SetEndpointDirection() macro to set the current endpoint direction for bidirectional endpoints.

Renamed internal USB_INT_ENDPOINT_SETUP macro to USB_INT_RXSTPI to fit in with the rest of the interrupt vector macros.