Updates for Julia 1.0

[wookay]

hi. I made a PR for Julia 1.0. thanks.

[wookay]

I've got failed on test/consistency.jl:49

Test Failed at /Users/wookyoung/.julia/dev/WORLD/test/consistency.jl:49
  Expression: isapprox(y, y_org, atol=1.0e-10)
   Evaluated: isapprox([-7.58407e-5, -7.6328e-5, -7.68427e-5, -7.73393e-5, -7.7809e-5, -7.82181e-5, -7.86088e-5, -7.90738e-5, -7.96192e-5, -8.01599e-5  …  0.00145989, 0.0014989, 0.0014244, 0.00136394, 0.0011959, 0.00109028, 0.000987377, 0.000715921, 0.000551566, 0.000436188], [1.40671e-5, 1.17686e-8, -4.76671e-9, -5.89217e-9, 1.03473e-8, 2.01101e-8, 2.9894e-8, -2.57741e-8, -4.72008e-8, -2.07173e-8  …  0.000233035, 0.000213996, 0.000109435, 0.000166247, 0.000138097, 0.000140724, 0.000116118, 6.95487e-6, 8.7636e-5, 0.00024809]; atol=1.0e-10)

[coveralls]

Coverage remained the same at 100.0% when pulling 6370eca on wookay:fix_julia1 into 830c086 on r9y9:master.

[r9y9]

Thanks!