BoundsError with Interpolations 0.9.x

Interpolations 0.9.0 was a breaking release, and it breaks KernelDensity when trying to evaluate the KDE outside the bounds of the interpolator.
Steps to reproduce:

Manifest.toml.zip
(v1.0) pkg> generate Test
Generating project Test:
    Test/Project.toml
    Test/src/Test.jl

shell> cd Test
/tmp/Test

(v1.0) pkg> activate .

(Test) pkg> add KernelDensity
  Updating registry at `~/.julia/registries/General`
  Updating git-repo `https://github.com/JuliaRegistries/General.git`
 Resolving package versions...
  Updating `Project.toml`
  [5ab0869b] + KernelDensity v0.5.0
  Updating `Manifest.toml`
  [621f4979] + AbstractFFTs v0.3.2
  [7d9fca2a] + Arpack v0.2.3
  [13072b0f] + AxisAlgorithms v0.3.0
  [9e28174c] + BinDeps v0.8.10
  [b99e7846] + BinaryProvider v0.5.0
  [49dc2e85] + Calculus v0.4.1
  [bbf7d656] + CommonSubexpressions v0.2.0
  [34da2185] + Compat v1.2.0
  [8f4d0f93] + Conda v1.0.2
  [864edb3b] + DataStructures v0.14.0
  [01453d9d] + DiffEqDiffTools v0.6.0
  [163ba53b] + DiffResults v0.0.3
  [b552c78f] + DiffRules v0.0.7
  [31c24e10] + Distributions v0.16.4
  [7a1cc6ca] + FFTW v0.2.4
  [f6369f11] + ForwardDiff v0.9.0
  [a98d9a8b] + Interpolations v0.9.1
  [682c06a0] + JSON v0.19.0
  [5ab0869b] + KernelDensity v0.5.0
  [d3d80556] + LineSearches v7.0.0
  [e1d29d7a] + Missings v0.3.1
  [d41bc354] + NLSolversBase v7.1.0
  [77ba4419] + NaNMath v0.3.2
  [6fe1bfb0] + OffsetArrays v0.8.1
  [429524aa] + Optim v0.17.1
  [bac558e1] + OrderedCollections v1.0.2
  [90014a1f] + PDMats v0.9.5
  [d96e819e] + Parameters v0.10.1
  [85a6dd25] + PositiveFactorizations v0.2.1
  [1fd47b50] + QuadGK v2.0.2
  [c84ed2f1] + Ratios v0.3.0
  [189a3867] + Reexport v0.2.0
  [79098fc4] + Rmath v0.5.0
  [a2af1166] + SortingAlgorithms v0.3.1
  [276daf66] + SpecialFunctions v0.7.1
  [90137ffa] + StaticArrays v0.8.3
  [2913bbd2] + StatsBase v0.25.0
  [4c63d2b9] + StatsFuns v0.7.0
  [30578b45] + URIParser v0.4.0
  [81def892] + VersionParsing v1.1.3
  [efce3f68] + WoodburyMatrices v0.4.1
  [2a0f44e3] + Base64 
  [ade2ca70] + Dates 
  [8bb1440f] + DelimitedFiles 
  [8ba89e20] + Distributed 
  [b77e0a4c] + InteractiveUtils 
  [76f85450] + LibGit2 
  [8f399da3] + Libdl 
  [37e2e46d] + LinearAlgebra 
  [56ddb016] + Logging 
  [d6f4376e] + Markdown 
  [a63ad114] + Mmap 
  [44cfe95a] + Pkg 
  [de0858da] + Printf 
  [3fa0cd96] + REPL 
  [9a3f8284] + Random 
  [ea8e919c] + SHA 
  [9e88b42a] + Serialization 
  [1a1011a3] + SharedArrays 
  [6462fe0b] + Sockets 
  [2f01184e] + SparseArrays 
  [10745b16] + Statistics 
  [4607b0f0] + SuiteSparse 
  [8dfed614] + Test 
  [cf7118a7] + UUIDs 
  [4ec0a83e] + Unicode 

julia> using Random, KernelDensity

julia> Random.seed!(1337);

julia> x = rand(1000);

julia> K = kde(x)
UnivariateKDE{StepRangeLen{Float64,Base.TwicePrecision{Float64},Base.TwicePrecision{Float64}}}(-0.26038988009831726:0.0007430635406498104:1.2606611876118445, [7.04455e-5, 7.05408e-5, 7.07904e-5, 7.11946e-5, 7.17542e-5, 7.247e-5, 7.33433e-5, 7.43754e-5, 7.55682e-5, 7.69234e-5  …  7.80742e-5, 7.65918e-5, 7.5274e-5, 7.41185e-5, 7.31234e-5, 7.22871e-5, 7.1608e-5, 7.10851e-5, 7.07174e-5, 7.05043e-5])

julia> pdf(K, -1.0)
┌ Warning: interpolate(A, BSpline(Quadratic(Line())), Interpolations.OnGrid()) is deprecated, use interpolate(A, BSpline(Quadratic(Line(Interpolations.OnGrid()))))
│   caller = Type at interp.jl:11 [inlined]
└ @ Core ~/.julia/packages/KernelDensity/JfNeR/src/interp.jl:11
┌ Warning: `getindex(itp::AbstractInterpolation{T, N}, i::Vararg{Number, N}) where {T, N}` is deprecated, use `itp(i...)` instead.
│   caller = pdf at interp.jl:25 [inlined]
└ @ Core ~/.julia/packages/KernelDensity/JfNeR/src/interp.jl:25
ERROR: BoundsError: attempt to access 2048-element interpolate(OffsetArray(::Array{Float64,1}, 0:2049), BSpline(Quadratic(Line(Interpolations.OnGrid())))) with element type Float64 at index [-994.3524556660287]
Stacktrace:
 [1] throw_boundserror(::Interpolations.BSplineInterpolation{Float64,1,OffsetArrays.OffsetArray{Float64,1,Array{Float64,1}},Interpolations.BSpline{Interpolations.Quadratic{Interpolations.Line{Interpolations.OnGrid}}},Tuple{Base.OneTo{Int64}}}, ::Tuple{Float64}) at ./abstractarray.jl:484
 [2] BSplineInterpolation at /home/jl/.julia/packages/Interpolations/Pwkql/src/b-splines/indexing.jl:6 [inlined]
 [3] (::Interpolations.ScaledInterpolation{Float64,1,Interpolations.BSplineInterpolation{Float64,1,OffsetArrays.OffsetArray{Float64,1,Array{Float64,1}},Interpolations.BSpline{Interpolations.Quadratic{Interpolations.Line{Interpolations.OnGrid}}},Tuple{Base.OneTo{Int64}}},Interpolations.BSpline{Interpolations.Quadratic{Interpolations.Line{Interpolations.OnGrid}}},Tuple{StepRangeLen{Float64,Base.TwicePrecision{Float64},Base.TwicePrecision{Float64}}}})(::Float64) at /home/jl/.julia/packages/Interpolations/Pwkql/src/scaling/scaling.jl:63
 [4] getindex(::Interpolations.ScaledInterpolation{Float64,1,Interpolations.BSplineInterpolation{Float64,1,OffsetArrays.OffsetArray{Float64,1,Array{Float64,1}},Interpolations.BSpline{Interpolations.Quadratic{Interpolations.Line{Interpolations.OnGrid}}},Tuple{Base.OneTo{Int64}}},Interpolations.BSpline{Interpolations.Quadratic{Interpolations.Line{Interpolations.OnGrid}}},Tuple{StepRangeLen{Float64,Base.TwicePrecision{Float64},Base.TwicePrecision{Float64}}}}, ::Float64) at ./deprecated.jl:55
 [5] pdf at /home/jl/.julia/packages/KernelDensity/JfNeR/src/interp.jl:25 [inlined]
 [6] pdf(::UnivariateKDE{StepRangeLen{Float64,Base.TwicePrecision{Float64},Base.TwicePrecision{Float64}}}, ::Float64) at /home/jl/.julia/packages/KernelDensity/JfNeR/src/interp.jl:29
 [7] top-level scope at none:0
JuliaStats / KernelDensity.jl

BoundsError with Interpolations 0.9.x #60

Steps to reproduce:
