implementation and test for u-quadratic distribution for issue #21
adding in forgotten implementation file for u-quadratic distribution for issue #21
removing erroneous commit for issue #21
Merge branch 'gh_-21_u-quadratic_distribution' of https://github.com/glyphard/framework into glyphard-gh_-21_u-quadratic_distribution

Conflicts:
	Unit Tests/Accord.Tests.Statistics/Accord.Tests.Statistics.csproj
Merge branch 'glyphard-gh_-21_u-quadratic_distribution' into development
GH-21: Adding U-quadratic distribution contributed by Ashley Messer.