Building on 64-bit Windows gets to 99% and fails on this particular file due to the `stdafx.h` inclusion.
The macro in `entropy-meter.cpp` is different than `src/zxcvbn/zxcvbn.cpp`.
After copying the macro from `zxcvbn.cpp` and rebuilding, the Windows build succeeded.
* Add Standalone Password Generator. Closes#18
* Add an entropy meter for passwords. Closes#84
* Don't require password repeat when it is visible. Fixes#27