remove horribly EOL PHP versions....

mallardduck · mallardduck · commit 11d416e47d7b · 2019-06-21T11:15:47.000-04:00
...PHP 5.5 should probably go too, but I can see a reason to keep it.
diff --git a/.travis.yml b/.travis.yml
@@ -1,9 +1,6 @@
 language: php
 
 php:
-  - 5.3.3
-  - 5.3
-  - 5.4
   - 5.5
   - 5.6
   - hhvm

-Original file line number
+Diff line change
@@ @@ -1,9 +1,6 @@ @@
 language: php
 php:
 -  - 5.3.3
 -  - 5.3
 -  - 5.4
   - 5.5
   - 5.6
   - hhvm