Move marked from a dependency to a devDependency

Author: David Brainer-Banker

package.json

@@ -71,6 +71,7 @@
     "karma-spec-reporter": "0.0.20",
     "karma-webpack": "^1.7.0",
     "lodash.trim": "^4.0.1",
+    "marked": "^0.3.5",
     "mocha": "^2.3.3",
     "phantomjs": "^1.9.18",
     "precommit-hook": "^3.0.0",
@@ -103,7 +104,6 @@
     "lodash.omit": "^3.1.0",
     "lodash.partial": "^4.1.3",
     "lodash.reject": "^4.3.0",
-    "marked": "^0.3.5",
     "react-modal": "^0.6.1",
     "react-onclickoutside": "^4.5.0",
     "tether": "1.1.0",