back to full travis matrix

Author: Sciss

.travis.yml

@@ -5,14 +5,14 @@ import: scala/scala-dev:travis/default.yml
 language: scala
 
 scala:
-        #  - 2.11.12
-        #  - 2.12.11
-        #  - 2.13.3
+  - 2.11.12
+  - 2.12.11
+  - 2.13.3
   - 3.0.0-M2
 
 env:
   - ADOPTOPENJDK=8
-    #  - ADOPTOPENJDK=11
+  - ADOPTOPENJDK=11
 
 install:
   - git fetch --tags # get all tags for sbt-dynver