Removed php 5.4 & 5.5 from Travis CI testing, added PHP version requirement to composer.json.

frenck · frenck · commit 61181882c221 · 2016-10-20T23:10:15.000+02:00
These PHP version should not be used anyway.
diff --git a/.travis.yml b/.travis.yml
@@ -3,8 +3,6 @@ language: php
 php:
   - 7.0
   - 5.6
-  - 5.5
-  - 5.4
 
 script:
   - composer self-update || true

-Original file line number
+Diff line change
 php:
   - 7.0
   - 5.6
 -  - 5.5
 -  - 5.4
 script:
   - composer self-update || true