Drop support for Julia < 1.3

Author: devmotion

Project.toml

@@ -25,7 +25,7 @@ ProgressLogging = "0.1"
 StatsBase = "0.32, 0.33"
 TerminalLoggers = "0.1"
 Transducers = "0.4.30"
-julia = "1"
+julia = "1.3"
 
 [extras]
 Atom = "c52e3926-4ff0-5f6e-af25-54175e0327b1"