Rename 'utitlity' to 'utility'.

pEpCOMServerAdapter.vcxproj

@@ -134,7 +134,7 @@ echo "generating interop assembly $(TargetDir)pEpCOMServerAdapter.Interop.dll"
       <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
       </PrecompiledHeader>
     </ClCompile>
-    <ClCompile Include="pEp_utitlity.cpp" />
+    <ClCompile Include="pEp_utility.cpp" />
     <ClCompile Include="stdafx.cpp">
       <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">Create</PrecompiledHeader>
       <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">Create</PrecompiledHeader>

pEpCOMServerAdapter.vcxproj.filters

@@ -37,7 +37,7 @@
     <ClCompile Include="utf8_helper.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="pEp_utitlity.cpp">
+    <ClCompile Include="pEp_utility.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
   </ItemGroup>