Minor fixups to the documentation and preprocessor tokens.

Demos/Device/ClassDriver/MassStorage/Lib/DataflashManager.h

...ce/ClassDriver/MassStorageKeyboard/Lib/DataflashManager.h

Demos/Device/LowLevel/MassStorage/Lib/DataflashManager.h

Projects/AVRISP-MKII/Lib/XPROG/TINYNVM.c

...ts/Incomplete/StandaloneProgrammer/Lib/DataflashManager.h

Projects/TemperatureDataLogger/Lib/DataflashManager.h

Projects/Webserver/Lib/DataflashManager.h

Projects/Webserver/Lib/uIPManagement.h