JuliaLang/julia — pull request #5059 by ggggggggg (2013-12-07 23:42:39+00:00)
Title: RFC support for rand(Ranges) and rand(Ranges,dims)

previously rand accepted only Range1{T<:Integer}
closes #5041

allows things like
```
julia> rand(1:1//2:10,1,5)
1x5 Array{Rational{Int64},2}:
19//2 19//2 2//1 8//1 17//2
julia> rand(1:7:100,1,5)
1x5 Array{Int64,2}:
57 92 15 99 50
```

I left in most of the specific Range1{T<:Integer} code because I wasn't sure about performance.