Upstream into other libraries

[miguelraz]

Other libraries implement Orthogonal Polynomials - it is probably best to find a good home so that these kiddies can be nurtured and cared for along with all the other nice polynomials.

To consider:

1. Keep this repo, but make inject it as a dependency on others.
2. Make this repo obsolete, and upstream it wholesale into another
3. Suggestions welcome.

Repos/Orgs worth considering:

• ApproxFun.jl
• SpecialFunctions.jl
• JuliaAlgebra

I will now begin a list subject to edit to keep track of Pros/Cons of merging vs. going solo.

Pros:

1. Unified Julia

Cons:
2. More bloat - (Do one thing and do it well...)