intersperse
intercalate
nub
export nub
Merge branch 'master' into intersperse

Conflicts:
	classy-prelude/ClassyPrelude/List.hs
reimplement concat using Foldable
foldable-based intercalate
CanConcat-typeclass-based solution
Merge branch 'concat' into intersperse

Conflicts:
	classy-prelude/ClassyPrelude/Vector.hs
CanConcat-based intercalate
fix CanFind functional dependency
Merge pull request #20 from nikita-volkov/fix-find-fundep

fix CanFind functional dependency
Merge pull request #19 from nikita-volkov/concat

Generalize concat
partition
drop CanNub instance for Vector
Switch to nubBy
Merge pull request #21 from nikita-volkov/partition

partition
Merge branch 'intersperse' of https://github.com/nikita-volkov/classy-prelude

Conflicts:
	classy-prelude/ClassyPrelude/Classes.hs
Merge branch 'nub' of https://github.com/nikita-volkov/classy-prelude into nub

Conflicts:
	classy-prelude/ClassyPrelude.hs
	classy-prelude/ClassyPrelude/Classes.hs
	classy-prelude/ClassyPrelude/List.hs
	classy-prelude/ClassyPrelude/Vector.hs
More efficient nub