Updated composer and included lock file

Author: lazyguru

composer.json

@@ -29,18 +29,12 @@
     "support": {
         "email": "dropbox-php@googlegroups.com"
     },
-    "repositories": {
-        "phppear": {
-            "pear": "http://pear.php.net"
-        }
-    },
-    "suggest": {
-        "oauth": "*",
-        "http_oauth": ">=1.1.18"
-    },
     "require": {
         "php": ">=5.3.0"
     },
+    "require-dev": {
+        "phpunit/phpunit": "4.2.*"
+    },
     "autoload": {
         "psr-0": { "Dropbox": "src/" }
     },