Update to num-traits 0.2.

waywardmonkeys · waywardmonkeys · commit ecd78a260531 · 2018-04-07T17:35:44.000+07:00
diff --git a/Cargo.toml b/Cargo.toml
@@ -23,4 +23,4 @@ name = "rustbox"
 bitflags = "1"
 termbox-sys = "0.2.9"
 gag = "0.1.6"
-num-traits = "0.1.13"
+num-traits = "0.2"
