Develop

update the following dependacies:
-        "symfony/finder": "2.5.*@dev"       "symfony/finder": "2.5.7",
-        "guzzlehttp/guzzle": "~4.0"            "guzzlehttp/guzzle": "~5.0",
-        "aws/aws-sdk-php": "2.6.*"	       "aws/aws-sdk-php": "2.7.*"
-        "phpunit/phpunit": "4.2.*"               "phpunit/phpunit": "4.3.*",