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[nickrobinson251]

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[mattBrzezinski]

Travis CI is failing, definitely not from your changes.

Functional: Error During Test at /Users/travis/build/invenia/Nabla.jl/test/sensitivities/functional/functional.jl:4
  Got exception outside of a @test
  StackOverflowError:
  Stacktrace:
   [1] loggamma(::Dual{Float64}) at /Users/travis/.julia/packages/SpecialFunctions/ne2iw/src/gamma.jl:654 (repeats 80000 times)
┌ Warning: `lgamma(x::Real)` is deprecated, use `(logabsgamma(x))[1]` instead.
│   caller = _mapreduce(::typeof(lgamma), ::typeof(+), ::IndexLinear, ::Array{Float64,1}) at reduce.jl:313
└ @ Base ./reduce.jl:313
┌ Warning: `lgamma(x::Real)` is deprecated, use `(logabsgamma(x))[1]` instead.
│   caller = _mapreduce(::typeof(lgamma), ::typeof(+), ::IndexLinear, ::Array{Float64,1}) at reduce.jl:313
└ @ Base ./reduce.jl:313
┌ Warning: `lgamma(x::Real)` is deprecated, use `(logabsgamma(x))[1]` instead.
│   caller = _mapreduce(::typeof(lgamma), ::typeof(+), ::IndexLinear, ::Array{Float64,1}) at reduce.jl:316
└ @ Base ./reduce.jl:316
┌ Warning: `lgamma(x::Real)` is deprecated, use `(logabsgamma(x))[1]` instead.
│   caller = mapreduce_first(::typeof(lgamma), ::Function, ::Float64) at reduce.jl:297
└ @ Base ./reduce.jl:297
┌ Warning: `lgamma(x::Real)` is deprecated, use `(logabsgamma(x))[1]` instead.
│   caller = mapfoldl_impl(::typeof(lgamma), ::typeof(+), ::NamedTuple{(:init,),Tuple{Float64}}, ::Array{Float64,1}, ::Int64) at reduce.jl:45
└ @ Base ./reduce.jl:45
┌ Warning: `lgamma(x::Real)` is deprecated, use `(logabsgamma(x))[1]` instead.
│   caller = mapfoldl_impl(::typeof(lgamma), ::typeof(+), ::NamedTuple{(:init,),Tuple{Float64}}, ::Array{Float64,1}, ::Int64) at reduce.jl:49
└ @ Base ./reduce.jl:49
┌ Warning: `lgamma(x::Real)` is deprecated, use `(logabsgamma(x))[1]` instead.
│   caller = mapfoldr_impl(::typeof(lgamma), ::typeof(+), ::NamedTuple{(:init,),Tuple{Float64}}, ::Array{Float64,1}, ::Int64) at reduce.jl:102
└ @ Base ./reduce.jl:102
┌ Warning: `lgamma(x::Real)` is deprecated, use `(logabsgamma(x))[1]` instead.
│   caller = mapfoldr_impl(::typeof(lgamma), ::typeof(+), ::NamedTuple{(:init,),Tuple{Float64}}, ::Array{Float64,1}, ::Int64) at reduce.jl:105
└ @ Base ./reduce.jl:105
┌ Warning: `lgamma(x::Real)` is deprecated, use `(logabsgamma(x))[1]` instead.
│   caller = _mapreduce(::typeof(lgamma), ::typeof(Base.add_sum), ::IndexLinear, ::Array{Float64,1}) at reduce.jl:313
└ @ Base ./reduce.jl:313
┌ Warning: `lgamma(x::Real)` is deprecated, use `(logabsgamma(x))[1]` instead.
│   caller = _mapreduce(::typeof(lgamma), ::typeof(Base.add_sum), ::IndexLinear, ::Array{Float64,1}) at reduce.jl:313
└ @ Base ./reduce.jl:313
┌ Warning: `lgamma(x::Real)` is deprecated, use `(logabsgamma(x))[1]` instead.
│   caller = _mapreduce(::typeof(lgamma), ::typeof(Base.add_sum), ::IndexLinear, ::Array{Float64,1}) at reduce.jl:316
└ @ Base ./reduce.jl:316

[nickrobinson251]

Travis CI is failing, definitely not from your changes.

#182