deprecate 4.0, add 4.2.x

.travis.yml

@@ -5,8 +5,8 @@ dist: trusty
 
 haxe:
   - development
-  - "4.0.5"
-  - "4.1.4"
+  - "4.1.5"
+  - "4.2.2"
 
 install:
   - yes | haxelib install all