Dropped support for 5.4 and 5.5 php versions.

Mario Basic · Mario Basic · commit f17342c23a26 · 2016-01-22T18:08:05.000+01:00
diff --git a/composer.json b/composer.json
@@ -3,7 +3,7 @@
   "description": "WakaTime API for PHP",
   "keywords": ["wakatime", "time tracking", "api"],
   "require": {
-    "php": ">=5.4",
+    "php": ">=5.6",
     "guzzlehttp/guzzle": "~6.0"
   },
   "require-dev": {
