Bitcoin-Qt (Windows only): add version info to Resource File

- add version information to bitcoin-qt.rc, which is displayed on Windows, when looking in the executable properties and selecting "Details"
- introduce a new clientversion.h (used in bitcoin-qt.rc to generate
  version information), which takes only the version defines from
  version.h and is included in it (to allow usage with the windres rc-file
  compiler)
- move #define STRINGIFY(s) #s into clientversion.h as that is used in
  bitcoin-qt.rc and rename to DO_STRINGIZE(X)
- add #define STRINGIZE(X) DO_STRINGIZE(X), which is needed to convert the
  version defines into a version string in the rc-file
- this ensures we only need to update 1 file and have bitcoin-qt.exe
  version information

- for RC-file documentation see:
  http://msdn.microsoft.com/en-us/library/windows/desktop/aa381058%28v=vs.85%29.aspx

src/qt/res/bitcoin-qt.rc

@@ -1,10 +1,18 @@
 IDI_ICON1 ICON DISCARDABLE "icons/bitcoin.ico"
 
-#include <windows.h> // needed for VERSIONINFO
+#include <windows.h>             // needed for VERSIONINFO
+#include "../../clientversion.h" // holds the needed client version information
+
+#define VER_PRODUCTVERSION     CLIENT_VERSION_MAJOR,CLIENT_VERSION_MINOR,CLIENT_VERSION_REVISION,CLIENT_VERSION_BUILD
+#define VER_PRODUCTVERSION_STR STRINGIZE(CLIENT_VERSION_MAJOR) "." STRINGIZE(CLIENT_VERSION_MINOR) "." STRINGIZE(CLIENT_VERSION_REVISION) "." STRINGIZE(CLIENT_VERSION_BUILD)
+#define VER_FILEVERSION        VER_PRODUCTVERSION
+#define VER_FILEVERSION_STR    VER_PRODUCTVERSION_STR
 
 VS_VERSION_INFO VERSIONINFO
-FILEOS         	VOS_NT_WINDOWS32
-FILETYPE       	VFT_APP
+FILEVERSION     VER_FILEVERSION
+PRODUCTVERSION  VER_PRODUCTVERSION
+FILEOS          VOS_NT_WINDOWS32
+FILETYPE        VFT_APP
 BEGIN
     BLOCK "StringFileInfo"
     BEGIN
@@ -12,11 +20,13 @@ BEGIN
         BEGIN
             VALUE "CompanyName",        "Bitcoin"
             VALUE "FileDescription",    "Bitcoin-Qt (OSS GUI client for Bitcoin)"
+            VALUE "FileVersion",        VER_FILEVERSION_STR
             VALUE "InternalName",       "bitcoin-qt"
             VALUE "LegalCopyright",     "2009-2012 The Bitcoin developers"
             VALUE "LegalTrademarks1",   "Distributed under the MIT/X11 software license, see the accompanying file COPYING or http://www.opensource.org/licenses/mit-license.php."
             VALUE "OriginalFilename",   "bitcoin-qt.exe"
             VALUE "ProductName",        "Bitcoin-Qt"
+            VALUE "ProductVersion",     VER_PRODUCTVERSION_STR
         END
     END