[ADD] accounting: How to synchronize your Paypal account with Odoo?

https://docs.google.com/document/d/1wcvt7Zds4ckMoFp5R1MrzHvWw6P1pCQM0pMZjJaTaSA

accounting/bank/feeds.rst

@@ -9,4 +9,5 @@ Bank Feeds
    feeds/qif
    feeds/coda
    feeds/synchronize
+   feeds/paypal
    feeds/manual

accounting/bank/feeds/paypal.rst

@@ -0,0 +1,54 @@
+=================================================
+How to synchronize your Paypal account with Odoo?
+=================================================
+
+With Odoo, you can synchronize your Paypal account. That way, you don't
+have to record all your Paypal transaction in your favorite accounting
+software. The synchronization is done every 4 hours, and you can start
+reconciling Paypal payments in just a click.
+
+Configuration
+=============
+
+Install the account_yodlee module
+----------------------------------
+
+Start by installing the **account_yodlee** module, if it is not already
+installed. To do that, got the the menu 
+:menuselection:`Accounting --> Configuration --> Settings` of the
+accounting application. In the section **Bank & Cash**, set the option **Bank
+Interface - Sync your bank feeds automatically**.
+
+.. image:: media/paypal01.png
+    :align: center
+
+Click on the apply button once it's done.
+
+Setup your Paypal account
+-------------------------
+
+A Paypal account in Odoo is managed like a bank account. To setup your
+Paypal account, use the menu :menuselection:`Configuration --> Bank Accounts`. 
+Create a new bank account and name it **Paypal**. In the bank field, you can set
+**Paypal**.
+
+.. image:: media/paypal02.png
+    :align: center
+
+Once the Paypal account is created, go back to the **Accounting** dashboard
+and click on the **Synchronize** button. In the dialog, choose **Paypal** as
+the online institution and click on the configure button.
+
+.. image:: media/paypal03.png
+    :align: center
+
+Then, you will have to provide your credentials to connect to Paypal.
+Once everything is done, you should see your Paypal transactions right
+in Odoo and you can start reconciling your payments.
+
+Enjoy a full integration! You don't need to record transaction manually
+anymore.
+
+.. note::
+    You only have to provide your credentials the first time. Once
+    done, Odoo will synchronize with Paypal every 4 hours automatically.