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.

LUFA/Drivers/USB/HighLevel/StreamCallbacks.h

@@ -31,9 +31,8 @@
 /** \ingroup Group_USB
  *  @defgroup Group_StreamCallbacks Endpoint and Pipe Stream Callbacks
  *
- *  Macros and enums for the stream callback routines in Endpoint.h and Pipe.c. This module contains the
- *  code required to easily set up stream callback functions which can be used to force early abort of a
- *  stream read/write process.
+ *  Macros and enums for the stream callback routines. This module contains the code required to easily set up
+ *  stream callback functions which can be used to force early abort of a stream read/write process.
  *
  *  @{
  */