[Mono] Fixing build for mono-4.0 target platform

Signed-off-by: Gleb Golubitsky <sectoid@gnolltech.org>

Author: Sectoid

Nemerle.XBuild.Tasks.csproj

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="3.5" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup>
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>

NemerleAll-Mono.nproj

@@ -1,4 +1,4 @@
-<Project DefaultTargets="DevBuild2Stage" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" ToolsVersion="2.0">
+<Project DefaultTargets="DevBuild2Stage" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" ToolsVersion="4.0">
   <UsingTask TaskName="MSBuild.Community.Tasks.FileUpdate" AssemblyFile="$(MSBuildProjectDirectory)\ExternalDependences\MSBuild.Community.Tasks.dll" />
   <PropertyGroup Condition=" '$(NTargetName)' == '' ">
     <NTargetName>Rebuild</NTargetName>
@@ -118,10 +118,10 @@
   </Target>
   <!--Prepare boot-->
   <Target Name="NPrepareBoot">
-    <CreateItem Include="$(NRoot)\boot\*.exe">
+    <CreateItem Include="$(NRootBoot)\*.exe">
       <Output ItemName="NBootFiles" TaskParameter="Include" />
     </CreateItem>
-    <CreateItem Include="$(NRoot)\boot\*.dll">
+    <CreateItem Include="$(NRootBoot)\*.dll">
       <Output ItemName="NBootFiles" TaskParameter="Include" />
     </CreateItem>
     <Copy SourceFiles="@(NBootFiles)" DestinationFolder="$(NBoot)" />