Updated dependencies

Author: norberttech

composer.json

@@ -16,14 +16,14 @@
     "require": {
         "php": ">=5.3.0",
         "ext-filter": "*",
-        "coduo/php-to-string": "~2.0",
-        "symfony/property-access": "~2.3",
-        "symfony/expression-language": "~2.4",
+        "coduo/php-to-string": "^2.0",
+        "symfony/property-access": "^2|^3.0",
+        "symfony/expression-language": "^2|^3.0",
         "doctrine/lexer": "1.0.*",
-        "openlss/lib-array2xml": "0.0.9"
+        "openlss/lib-array2xml": "0.0.10"
     },
     "require-dev": {
-        "phpunit/phpunit": "3.7.*"
+        "phpunit/phpunit": "^4.8"
     },
     "autoload": {
         "psr-0": {