Revert "Update travis config to not do below 514"

This reverts commit 55cf72a464df162ad626e8c6839ff885439261a6.

.travis.yml

@@ -4,6 +4,8 @@ perl:
    - '5.18'
    - '5.16'
    - '5.14'
+   - '5.12'
+   - '5.10'
 
 matrix:
    fast_finish: true