Remove all trailing spaces

No real changes, just clean up sources by removing trailing spaces from
all the non-generated files.

This should hopefully avoid future commits mixing significant changes
with insignificant whitespace ones.

samples/xrc/rc/artprov.xrc

@@ -37,7 +37,7 @@
                     <object class="wxStaticBitmap" name="my_bitmap">
                         <bitmap stock_id="wxART_INFORMATION" stock_client="wxART_MESSAGE_BOX">derivdlg.xpm</bitmap>
                     </object>
-                </object>                
+                </object>
                 <object class="sizeritem">
                     <flag>wxALIGN_CENTRE|wxALL</flag>
                     <border>5</border>

samples/xrc/rc/menu.xrc

@@ -29,7 +29,7 @@
             <label>_Non-Derived Dialog Example</label>
             <bitmap>basicdlg.xpm</bitmap>
             <help>The basic instance of wxDialog loaded via XRC</help>
-        </object>  
+        </object>
         <object class="wxMenuItem" name="derived_tool_or_menuitem">
             <label>_Derived Dialog Example</label>
             <bitmap>derivdlg.xpm</bitmap>
@@ -39,13 +39,13 @@
             <label>_Controls Example</label>
             <bitmap>controls.xpm</bitmap>
             <help>A notebook displaying all the wxWidgets controls</help>
-        </object>        
+        </object>
         <object class="wxMenuItem" name="uncentered_tool_or_menuitem">
             <label>_Uncentered Example</label>
             <bitmap>uncenter.xpm</bitmap>
             <help>Disable autocentering of a dialog on its parent</help>
-        </object>  
-    </object>        
+        </object>
+    </object>
     <object class="wxMenu" name="advanced_demos_menu">
         <label>_Advanced</label>
         <help>Advanced techniques with XRC</help>
@@ -63,7 +63,7 @@
             <label>_Custom Class Example</label>
             <bitmap>custclas.xpm</bitmap>
             <help>Embed your own custom classes into an XRC</help>
-        </object>  
+        </object>
         <object class="wxMenuItem" name="platform_property_tool_or_menuitem">
             <label>_Platform Specific Example</label>
             <bitmap>platform.xpm</bitmap>
@@ -78,7 +78,7 @@
             <label>_Variable Expansion Example</label>
             <bitmap>variable.xpm</bitmap>
             <help>Replace variables in the XRC file at runtime</help>
-        </object>        
+        </object>
         <object class="wxMenuItem" name="variants">
             <label>_Variants</label>
             <bitmap>variants.xpm</bitmap>
@@ -88,7 +88,7 @@
             <label>_Recursive Load</label>
             <help>Show how an individual control can be loaded</help>
         </object>
-    </object>    
+    </object>
     <object class="wxMenu" name="help_menu">
         <label>_Help</label>
 

samples/xrc/rc/platform.xrc

@@ -109,27 +109,27 @@
             <object class="wxStaticText" name="download_mac_statictext">
                 <label>Get latest update at www.mycompany.com/download/mac</label>
             </object>
-        </object>     
-        <object platform="win" class="sizeritem"> 
+        </object>
+        <object platform="win" class="sizeritem">
             <flag>wxALIGN_CENTRE|wxALL</flag>
             <border>5</border>
             <object class="wxStaticText" name="download_win_statictext">
                 <label>Get latest update at www.mycompany.com/download/win</label>
             </object>
-        </object>    
+        </object>
         <object platform="unix" class="sizeritem">
             <flag>wxALIGN_CENTRE|wxALL</flag>
             <border>5</border>
             <object class="wxStaticText" name="download_unix_statictext">
                 <label>Get latest update at www.mycompany.com/download/unix</label>
             </object>
-        </object>    
+        </object>
         <object platform="os2" class="sizeritem">
             <flag>wxALIGN_CENTRE|wxALL</flag>
             <border>5</border>
             <object class="wxStaticText" name="download_os2_statictext">
                 <label>Get latest update at www.mycompany.com/download/os2</label>
-            </object>        
+            </object>
         </object>
         <object class="sizeritem">
             <flag>wxALIGN_CENTRE|wxALL</flag>

samples/xrc/rc/toolbar.xrc

@@ -19,12 +19,12 @@
         <tooltip>Controls Example</tooltip>
         <bitmap>controls.xpm</bitmap>
         <longhelp>A notebook displaying all the wxWidgets controls</longhelp>
-    </object>        
+    </object>
     <object class="tool" name="uncentered_tool_or_menuitem">
         <tooltip>Uncentered Example</tooltip>
         <bitmap>uncenter.xpm</bitmap>
         <longhelp>Disable autocentering of a dialog on its parent</longhelp>
-    </object>  
+    </object>
     <object class="separator"/>
      <object class="tool" name="aui_demo_tool_or_menuitem">
         <bitmap>aui.xpm</bitmap>
@@ -40,7 +40,7 @@
         <tooltip>Custom Class Example</tooltip>
         <bitmap>custclas.xpm</bitmap>
         <longhelp>Embed your own custom classes into an XRC</longhelp>
-    </object>  
+    </object>
     <object class="tool" name="platform_property_tool_or_menuitem">
         <tooltip>Platform Specific Example</tooltip>
         <bitmap>platform.xpm</bitmap>
@@ -55,7 +55,7 @@
         <tooltip>Variable Expansion Example</tooltip>
         <bitmap>variable.xpm</bitmap>
         <longhelp>Replace variables in the XRC file at runtime</longhelp>
-    </object>        
+    </object>
 </object>
- 
+
 </resource>