Support CliqueTrees 1.0. (#156)

Author: samuelsonric

Project.toml

@@ -25,7 +25,7 @@ Statistics = "10745b16-79ce-11e8-11f9-7d13ad32a3b2"
 StatsBase = "2913bbd2-ae8a-5f71-8c99-4fb6c76f3a91"
 
 [compat]
-CliqueTrees = "0.5.2"
+CliqueTrees = "0.5.2, 1"
 DataFrames = "0.22,1.0,1.1"
 DataStructures = "0.11,0.12,0.13,0.14,0.15,0.16,0.17,0.18"
 Discretizers = "3.0"