Test PHP 7.4 on Travis

WyriHaximus · WyriHaximus · commit 7adbbf2bbe65 · 2020-02-01T12:25:02.000+01:00
diff --git a/.travis.yml b/.travis.yml
@@ -4,6 +4,7 @@ php:
   - 7.1
   - 7.2
   - 7.3
+  - 7.4
   - nightly # ignore errors, see below
 
 # lock distro so new future defaults will not break the build
