Updated the extraction of default functions in props

Author: rafaesc

package.json

@@ -1,6 +1,6 @@
 {
   "name": "vue-docgen-api",
-  "version": "1.0.4",
+  "version": "1.0.5",
   "description": "Toolbox to extract information from Vue component files for documentation generation purposes.",
   "bugs": {
     "url": "https://github.com/vue-styleguidist/vue-docgen-api/issues"

src/utils/getProp.js

@@ -31,6 +31,7 @@ export default function getProp(prop, docPart){
 			if (prop.default) {
 				let value;
 				if (typeof prop.default === 'function') {
+					obj['type'] = { name: 'func' }
 					var func = prop.default.toString().replace(fnNameMatchRegex, 'function');
 					value = JSON.parse(JSON.stringify(func.replace(/\s\s+/g, ' ')))
 				} else {