SciPy sum function is deprecated causing Factor-Analyzer to fail

[GoBlue60s]

The latest version of SciPy has deprecated the sum function which Factor_Analyzer seems to use. I believe that replacing it with NumPy's sum function may work.

[desilinguist]

Thanks for reporting the issue @GoBlue60s! I will reproduce and start a fix soon.

[desilinguist]

Addressed by #135.

[desilinguist]

@GoBlue60s v0.5.1 with the fix has been released. Thanks again for filing the issue!

[GoBlue60s]

I installed v0.5.1 via PyCharm and tested it. I can confirm that it has fixed the issue. Thank you for your prompt attention to this matter.