[FIX] point_of_sale: correct the pluralisation

The correct plural of 'Point of Sale' is 'Points of Sale', not 'Point of Sales'
Courtesy of Nick Booker, OpusVL
cf #13417

addons/point_of_sale/static/description/index.html

@@ -32,7 +32,7 @@
 <section class="oe_container">
     <div class="oe_row oe_spaced">
         <h2 class="oe_slogan" style="color:#A24689;">An interface designed for productivity</h2>
-        <h3 class="oe_slogan oe_mb32">The Point of Sales that keeps everything where you need it</h3>
+        <h3 class="oe_slogan oe_mb32">The point of sale that keeps everything where you need it</h3>
         <div class="oe_span4 text-center">
             <span class="fa fa-paint-brush fa-2x"/>
             <h4 class="oe_mt16 oe_mb8">
@@ -80,7 +80,7 @@
                 While an Internet connection is required to start the Point of Sale, it will stay operational even after complete disconnection. Because it's extremely flexible, you can configure Odoo POS to meet your precise needs.
             </p>
             <p class="oe_mt8">
-                No installation and no specific hardware is required to use Odoo POS. Our solution for point of sales is compatible with desktop PCs, iPads and other tablet computers, laptops and industrial POS machines.
+                No installation and no specific hardware is required to use Odoo POS. Our solution for points of sale is compatible with desktop PCs, iPads and other tablet computers, laptops and industrial POS machines.
             </p>
         </div>
     </div>
@@ -128,7 +128,7 @@
     <div class="oe_row oe_spaced">
         <div class="lead text-center">
             <p>
-            Odoo Point of Sales is more than an ordinary POS.
+            Odoo Point of Sale is more than an ordinary POS.
             <br/>
             Our app provides extra features to deliver awesome customer service.
             </p>
@@ -145,7 +145,7 @@
         </div>
         <div class='oe_span6'>
             <p class="oe_mt32 text-justify">
-            Give your shopper a positive experience by improving your services. Handle refunds, track warranties, follow customer claims, plan order deliveries, etc... in one interface. Bring your sales at the next level. Odoo POS can produce customer invoices in just a few clicks and synchronize with Odoo Accounting. Your accounting will be easier and more accurate. Our Point of Sales helps you to control sales and cash in real time but also to keep your whole operations under control.
+            Give your shopper a positive experience by improving your services. Handle refunds, track warranties, follow customer claims, plan order deliveries, etc... in one interface. Bring your sales at the next level. Odoo POS can produce customer invoices in just a few clicks and synchronize with Odoo Accounting. Your accounting will be easier and more accurate. Our Point of Sale helps you to control sales and cash in real time but also to keep your whole operations under control.
             </p>
         </div>
     </div>

addons/point_of_sale/views/res_config_view.xml

@@ -9,7 +9,7 @@
                         <button string="Apply" type="object" name="execute" class="oe_highlight"/>
                         <button string="Cancel" type="object" name="cancel" class="oe_link"/>
                     </header>
-                    <group string="Importable Point of Sales Data">
+                    <group string="Importable Point of Sale Data">
                         <label for="div" string="Beverages"/>
                         <div>
                             <div>

addons/pos_data_drinks/__openerp__.py

@@ -7,9 +7,9 @@
     'version': '1.0',
     'category': 'Point of Sale',
     'sequence': 99,
-    'summary': 'Common Drinks data for point of sales',
+    'summary': 'Common Drinks data for points of sale',
     'description': """
-        Common drinks data for point of sales
+        Common drinks data for points of sale
     """,
     'depends': ['point_of_sale'],
     'data': [

openerp/addons/base/module/module_data.xml

@@ -93,7 +93,7 @@
 
         <record model="ir.module.category" id="module_category_point_of_sale">
             <field name="name">Point of Sale</field>
-            <field name="description">Helps you get the most out of your points of sales with fast sale encoding, simplified payment mode encoding, automatic picking lists generation and more.</field>
+            <field name="description">Helps you get the most out of your points of sale with fast sale encoding, simplified payment mode encoding, automatic picking lists generation and more.</field>
             <field name="sequence">13</field>
         </record>