Use stable version of http-adapter

Author: jeromegamez

CHANGELOG.md

@@ -1,5 +1,9 @@
 # CHANGELOG
 
+## Unreleased
+
+- The Firebase library now has its own base URL handling so that a stable version of the HTTP adapter can be used.
+
 ## 0.2 - 2015-01-13
 
 - Better handling of server errors

composer.json

@@ -15,7 +15,7 @@
     "php": ">=5.4",
     "ext-curl": "*",
     "psr/log": "~1.0",
-    "egeloen/http-adapter": "~0.6@dev"
+    "egeloen/http-adapter": "~0.5"
   },
   "require-dev": {
     "phpunit/phpunit": "~4.4",