Gyroscope class tested and working

Ran gyroscope test and found several problems:
Syntax
test_gyroscope was not correct
Auto-increment was not being used to read values from the L3G4200D

Still confused why communications over i2c seem to reverse endianness. Setting the L3G4200D to big-endian causes the data to be correct in the program, even though the Pi processor is little-endian...