compat JLD2 v0.4 (#114)

Author: dehann

Project.toml

@@ -8,7 +8,7 @@ LightGraphs = "093fc24a-ae57-5d10-9952-331d41423f4d"
 Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
 
 [compat]
-JLD2 = "0.1.11, 0.2, 0.3"
+JLD2 = "0.1.11, 0.2, 0.3, 0.4"
 LightGraphs = "1.3.5"
 julia = "1"