update portaudio to stable_v19_20111121 and fix linker warnings

Source/VSProps/Dolphin.Win32.props

@@ -7,7 +7,7 @@
   </PropertyGroup>
   <ItemDefinitionGroup>
     <Link>
-      <AdditionalLibraryDirectories>..\..\..\Externals\SDL\$(PlatformName);..\..\..\Externals\GLew;..\..\..\Externals\Cg;..\..\..\Externals\portaudio\$(PlatformName)</AdditionalLibraryDirectories>
+      <AdditionalLibraryDirectories>..\..\..\Externals\SDL\$(PlatformName);..\..\..\Externals\GLew;..\..\..\Externals\Cg;..\..\..\Externals\portaudio\$(PlatformName)\$(ConfigurationName)</AdditionalLibraryDirectories>
       <AdditionalDependencies>portaudio.lib;dsound.lib;dxerr.lib;iphlpapi.lib;winmm.lib;setupapi.lib;xinput.lib;vfw32.lib;cg.lib;cgGL.lib;opengl32.lib;glew32s.lib;glu32.lib;rpcrt4.lib;comctl32.lib;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>

Source/VSProps/Dolphin.x64.props

@@ -8,7 +8,7 @@
   </PropertyGroup>
   <ItemDefinitionGroup>
     <Link>
-      <AdditionalLibraryDirectories>..\..\..\Externals\SDL\$(PlatformName);..\..\..\Externals\GLew;..\..\..\Externals\Cg64;..\..\..\Externals\portaudio\$(PlatformName)</AdditionalLibraryDirectories>
+      <AdditionalLibraryDirectories>..\..\..\Externals\SDL\$(PlatformName);..\..\..\Externals\GLew;..\..\..\Externals\Cg64;..\..\..\Externals\portaudio\$(PlatformName)\$(ConfigurationName)</AdditionalLibraryDirectories>
       <AdditionalDependencies>portaudio.lib;dsound.lib;dxerr.lib;iphlpapi.lib;winmm.lib;setupapi.lib;xinput.lib;vfw32.lib;cg.lib;cgGL.lib;opengl32.lib;glew64s.lib;glu32.lib;rpcrt4.lib;comctl32.lib;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>