fix(store): don't error if config isn't found

It will be created on the first set

Author: tlancina

lib/ionic/store.js

@@ -23,9 +23,7 @@ function IonicStore(fileName) {
 
   try {
     this.data = JSON.parse(fs.readFileSync(this.filePath));
-  } catch (e) {
-    throw e;
-  }
+  } catch (e) {} // eslint-disable-line no-empty
 
   return this;
 }