Install dotMemoryUnit from cake script

appveyor.yml

@@ -19,8 +19,7 @@ before_build:
 build_script:
 - ps: .\build.ps1 -Target "AppVeyor" -Platform "$env:platform" -Configuration "$env:configuration"
 after_build:
-- cmd: set PATH=%USERPROFILE%\.nuget\packages\JetBrains.dotMemoryUnit.2.1.20150828.125449\tools;%PATH%
-- dotMemoryUnit.exe -targetExecutable="%xunit20%\xunit.console.x86.exe" -returnTargetExitCode  --"tests\Avalonia.LeakTests\bin\Release\Avalonia.LeakTests.dll"
+- tools\JetBrains.dotMemoryUnit\tools\dotMemoryUnit.exe -targetExecutable="%xunit20%\xunit.console.x86.exe" -returnTargetExitCode  --"tests\Avalonia.LeakTests\bin\Release\Avalonia.LeakTests.dll"
 - "SET PATH=C:\\Python34;C:\\Python34\\Scripts;%PATH%"
 - pip install codecov
 - codecov -f "./artifacts/coverage.xml"

build.cake

@@ -5,7 +5,7 @@
 #addin "nuget:?package=Polly&version=4.2.0"
 #addin "nuget:?package=NuGet.Core&version=2.12.0"
 #tool "nuget:https://dotnet.myget.org/F/nuget-build/?package=NuGet.CommandLine&version=4.3.0-beta1-2361&prerelease"
-
+#tool "nuget:?package=JetBrains.dotMemoryUnit&version=2.1.20150828.125449"
 ///////////////////////////////////////////////////////////////////////////////
 // TOOLS
 ///////////////////////////////////////////////////////////////////////////////