Update conf to 2.0 (#43)

fixture-cwd.js

@@ -13,9 +13,11 @@ process.on('uncaughtException', err => {
 console.log(electron.app.getPath('userData'));
 
 const store = new Store({cwd: 'foo'});
+store.set('unicorn', '🦄');
 console.log(store.path);
 
 const store2 = new Store({cwd: path.join(__dirname, 'bar')});
+store2.set('ava', '🚀');
 console.log(store2.path);
 
 electron.app.quit();

package.json

@@ -32,7 +32,7 @@
 		"save"
 	],
 	"dependencies": {
-		"conf": "^1.3.0"
+		"conf": "^2.0.0"
 	},
 	"devDependencies": {
 		"ava": "*",

readme.md

@@ -84,6 +84,15 @@ It also has the added bonus of ensuring the config file's integrity. If the file
 
 When specified, the store will be encrypted using the [`aes-256-cbc`](https://en.wikipedia.org/wiki/Block_cipher_mode_of_operation) encryption algorithm.
 
+#### fileExtension
+
+type: `string`<br>
+Default: `json`
+
+Extension of the config file.
+
+You would usually not need this, but could be useful if you want to interact with a file with a custom file extension that can be associated with your app. These might be simple save/export/preference files that are intended to be shareable or saved outside of the app.
+
 ### Instance
 
 You can use [dot-notation](https://github.com/sindresorhus/dot-prop) in a `key` to access nested properties.