Work with Julia 1.0

[hsgg]

Main differences are:

- Don't use "const" keyword.
- Update syntax for parametric functions ("where").
- Depend on package "SpecialFunctions".
- Update syntax for "round()" and "print_with_color()".
- Base.Test -> Test.

[hsgg]

Hi! I was just wondering if you had a chance to look at this?

[hsgg]

Hi, I'm still interested in having this merged, since my own package depends on it. If you are not able to, would you be OK with me publishing it in the Julia general registry. I'm not sure how that works, though. Please let me know!

[hsgg]

I went ahead and created a pull request to add the package to the General julia registry. As the primary author, let me know if you want to do that instead, and we should be able to switch it over to you. JuliaRegistries/General#4491