add Preferences modal(30%done) & move some modules (actions, reducer, socket, store -> lib/~)

lib/api.js

@@ -17,6 +17,24 @@ export function signup (input) {
     .send(input)
 }
 
+export function updateUserInfo (input) {
+  return request
+    .put(API_URL + 'auth/user')
+    .set({
+      Authorization: 'Bearer ' + auth.token()
+    })
+    .send(input)
+}
+
+export function updatePassword (input) {
+  return request
+    .post(API_URL + 'auth/password')
+    .set({
+      Authorization: 'Bearer ' + auth.token()
+    })
+    .send(input)
+}
+
 export function fetchCurrentUser () {
   return request
     .get(API_URL + 'auth/user')
@@ -113,6 +131,8 @@ export function sendEmail (input) {
 export default {
   login,
   signup,
+  updateUserInfo,
+  updatePassword,
   fetchCurrentUser,
   fetchArticles,
   createArticle,