Spell check code and manual pages. Remove custom Doxygen CSS stylesheet, as the new 1.7 Doxygen's default stylesheet is much better.

LUFA/Drivers/Peripheral/AVRU4U6U7/ADC.h

@@ -287,7 +287,7 @@
 				#endif
 			}
 			
-			/** Deconfigures the given ADC channel, re-enabling digital I/O mode instead of analog. This
+			/** De-configures the given ADC channel, re-enabling digital I/O mode instead of analog. This
 			 *  function sets the associated port pin as an input and re-enabled the digital portion of
 			 *  the I/O.
 			 *

LUFA/Drivers/Peripheral/AVRU4U6U7/TWI.h

@@ -113,7 +113,7 @@
 			 *  \param[in] Byte      Location where the read byte is to be stored
 			 *  \param[in] LastByte  Indicates if the byte should be ACKed if false, NAKed if true
 			 *
-			 *  \return Boolean true if the byte reception sucessfully completed, false otherwise
+			 *  \return Boolean true if the byte reception successfully completed, false otherwise
 			 */
 			static inline bool TWI_ReceiveByte(uint8_t* Byte, bool LastByte)
 			{