Corrected test dependencies and added version numbers

Author: mossr

Project.toml

@@ -28,13 +28,15 @@ DataFrames = "0.21"
 DataStructures = "0.11,0.12,0.13,0.14,0.15,0.16,0.17"
 Discretizers = "3.0"
 Distributions = "0.17,0.18,0.19,0.20,0.21,0.22,0.23"
+GraphPlot = "0.4,0.4.1"
 IterTools = "1.3"
 LightGraphs = "1.0"
 LightXML = "0.8,0.9"
 NBInclude = "2.0"
 Parameters = "0.10,0.11,0.12"
 RDatasets = "0.5,0.6"
 Reexport = "0.2"
+Requires = "1.0.1"
 SpecialFunctions = "0.8,0.9,0.10"
 StatsBase = "0.25,0.26,0.27,0.28,0.29,0.30,0.31,0.32,0.33"
 julia = "1"
@@ -46,6 +48,7 @@ RDatasets = "ce6b1742-4840-55fa-b093-852dadbb1d8b"
 Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
 Statistics = "10745b16-79ce-11e8-11f9-7d13ad32a3b2"
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
+TikzGraphs = "b4f28e30-c73f-5eaf-a395-8a9db949a742"
 
 [targets]
-test = ["Statistics", "NBInclude", "LinearAlgebra", "Test", "RDatasets", "Random"]
+test = ["Statistics", "NBInclude", "LinearAlgebra", "Test", "RDatasets", "Random", "TikzGraphs"]

test/test_docs.jl

@@ -1,5 +1,4 @@
 using NBInclude
-import Pkg; Pkg.add("TikzGraphs")
 
 let
     @nbinclude(joinpath(dirname(@__DIR__), "doc", "BayesNets.ipynb"))