explicit dependencies

Author: dmolsen

composer.json

@@ -31,12 +31,12 @@
 	"prefer-stable": true,
 	"require": {
 		"php": ">=5.3.6",
-		"michelf/php-markdown": "1.5.*",
-		"seld/jsonlint": "1.3.*",
-		"symfony/event-dispatcher": "2.6.*",
-		"symfony/filesystem": "2.6.*",
-		"symfony/finder": "2.6.*",
-		"symfony/yaml": "2.6.*",
+		"michelf/php-markdown": "1.5.0",
+		"seld/jsonlint": "1.3.1",
+		"symfony/event-dispatcher": "2.6.4",
+		"symfony/filesystem": "2.6.4",
+		"symfony/finder": "2.6.4",
+		"symfony/yaml": "2.6.4",
 		"kevinlebrun/colors.php": "0.4.1",
 		"pattern-lab/unified-asset-installer": "~0.5",
 		"alchemy/zippy": "0.2.1"