allow any callable object, not just ::Function arguments about dassl.jl

[stevengj]

Note that using Vector for an argument type is also probably overtyped; you probably want AbstractVector.

[stevengj]

Also ::Int is overtyped; you want ::Integer (if you want to declare a type at all). In general, the Julian approach is to make your code as generic as possible, within the bounds of correctness and clarity.

[ChrisRackauckas]

Those are all really good points. I would like to see these changes as well.

[pwl]

Fixed with 838e072, hopefully I didn't miss a spot. Sorry for these bugs, this package was written two years ago when I had little clue about Julia (REQUIRE still contains Julia 0.2:-)). I also pushed a v0.0.5 tag.

[pwl]

So because we have to update METADATA anyway it's a good moment to move the package to JuliaDiffEq before doing that.

[stevengj]

Thanks! (Note, by the way, that most Julia developers seem to be moving away from FactCheck and back to Base.Test, now that the latter has @testset; Base.Test has all of the functionality of FactCheck with a much more Julian syntax.)