Usage of Wire library.

[Koepel]

The files:

• mikes-common/arduino/mikes/MPU6050.cpp
• mikes-common/arduino/mikes/HMC5883L.cpp

have issues with the way the Wire library is used.
See: jarzebski/Arduino-MPU6050#4
When the bugs are removed, there is no difference between the fastRegister8() and the readRegister8(). At this moment they both are equally slow because of the bug that causes an extra bus transaction.
Explanation: Common-mistakes, number 1, 2 and 3.