Pcbnew: minor target properties dialog improvements.

* Make spacing between controls and dialog frame consistent.
* Use default size to allow wxWigdets to determine optimal dialog size.
* Set OK button as default so return key works properly.

pcbnew/dialogs/dialog_target_properties_base.cpp

 ///////////////////////////////////////////////////////////////////////////
-// C++ code generated with wxFormBuilder (version Nov  6 2013)
+// C++ code generated with wxFormBuilder (version Oct  8 2012)
 // http://www.wxformbuilder.org/
 //
 // PLEASE DO "NOT" EDIT THIS FILE!
@@ -76,11 +76,12 @@ TARGET_PROPERTIES_DIALOG_EDITOR_BASE::TARGET_PROPERTIES_DIALOG_EDITOR_BASE( wxWi
 	m_sdbSizerButts->AddButton( m_sdbSizerButtsCancel );
 	m_sdbSizerButts->Realize();
 	
-	bSizerMain->Add( m_sdbSizerButts, 0, wxALIGN_RIGHT|wxEXPAND, 5 );
+	bSizerMain->Add( m_sdbSizerButts, 0, wxALIGN_RIGHT|wxBOTTOM|wxEXPAND|wxLEFT|wxRIGHT, 5 );
 	
 	
 	this->SetSizer( bSizerMain );
 	this->Layout();
+	bSizerMain->Fit( this );
 	
 	this->Centre( wxBOTH );
 	

pcbnew/dialogs/dialog_target_properties_base.fbp

@@ -20,10 +20,8 @@
         <property name="path">.</property>
         <property name="precompiled_header"></property>
         <property name="relative_path">1</property>
-        <property name="skip_lua_events">1</property>
         <property name="skip_php_events">1</property>
         <property name="skip_python_events">1</property>
-        <property name="ui_table">UI</property>
         <property name="use_enum">0</property>
         <property name="use_microsoft_bom">0</property>
         <object class="Dialog" expanded="1">
@@ -44,7 +42,7 @@
             <property name="minimum_size"></property>
             <property name="name">TARGET_PROPERTIES_DIALOG_EDITOR_BASE</property>
             <property name="pos"></property>
-            <property name="size">285,170</property>
+            <property name="size">-1,-1</property>
             <property name="style">wxDEFAULT_DIALOG_STYLE|wxRESIZE_BORDER</property>
             <property name="subclass">DIALOG_SHIM; dialog_shim.h</property>
             <property name="title">Target Properties</property>
@@ -900,7 +898,7 @@
                 </object>
                 <object class="sizeritem" expanded="1">
                     <property name="border">5</property>
-                    <property name="flag">wxALIGN_RIGHT|wxEXPAND</property>
+                    <property name="flag">wxALIGN_RIGHT|wxBOTTOM|wxEXPAND|wxLEFT|wxRIGHT</property>
                     <property name="proportion">0</property>
                     <object class="wxStdDialogButtonSizer" expanded="1">
                         <property name="Apply">0</property>

pcbnew/dialogs/dialog_target_properties_base.h

 ///////////////////////////////////////////////////////////////////////////
-// C++ code generated with wxFormBuilder (version Nov  6 2013)
+// C++ code generated with wxFormBuilder (version Oct  8 2012)
 // http://www.wxformbuilder.org/
 //
 // PLEASE DO "NOT" EDIT THIS FILE!
@@ -57,7 +57,7 @@ class TARGET_PROPERTIES_DIALOG_EDITOR_BASE : public DIALOG_SHIM
 	
 	public:
 		
-		TARGET_PROPERTIES_DIALOG_EDITOR_BASE( wxWindow* parent, wxWindowID id = wxID_ANY, const wxString& title = wxT("Target Properties"), const wxPoint& pos = wxDefaultPosition, const wxSize& size = wxSize( 285,170 ), long style = wxDEFAULT_DIALOG_STYLE|wxRESIZE_BORDER ); 
+		TARGET_PROPERTIES_DIALOG_EDITOR_BASE( wxWindow* parent, wxWindowID id = wxID_ANY, const wxString& title = wxT("Target Properties"), const wxPoint& pos = wxDefaultPosition, const wxSize& size = wxSize( -1,-1 ), long style = wxDEFAULT_DIALOG_STYLE|wxRESIZE_BORDER ); 
 		~TARGET_PROPERTIES_DIALOG_EDITOR_BASE();
 	
 };

pcbnew/target_edit.cpp

@@ -109,6 +109,9 @@ TARGET_PROPERTIES_DIALOG_EDITOR::TARGET_PROPERTIES_DIALOG_EDITOR( PCB_EDIT_FRAME
     // Shape
     m_TargetShape->SetSelection( m_Target->GetShape() ? 1 : 0 );
 
+    // OK button on return key.
+    SetDefaultItem( m_sdbSizerButtsOK );
+
     GetSizer()->Fit( this );
     GetSizer()->SetSizeHints( this );
     Centre();