convert-from-nuget doesn't properly update some project reference hint paths

[sneal]

When converting a solution over from nuget, some references do not have their csproj references element updated. See this repository for a VS solution which reproduces the issue.

$ paket convert-from-nuget
Paket version 0.8.5.0
Dependencies files saved to paket.dependencies
References file saved to c:\src\WseInstallTest\WseInstallTest\paket.references
Solution c:\src\WseInstallTest\WseInstallTest.sln changed
Deleted c:\src\WseInstallTest\WseInstallTest\packages.config
Parsing paket.dependencies
Resolving packages:
  - fetching versions for Microsoft.Web.Services2
    - exploring Microsoft.Web.Services2 2.0.3.0
Locked version resolutions written to c:\src\WseInstallTest\paket.lock
Microsoft.Web.Services2 2.0.3.0 unzipped to c:\src\WseInstallTest\packages\Microsoft.Web.Services2
05.06s - ready.

Inspecting the modified csproj the hintpath for Microsoft.Web.Service2 is unchanged, still referring to its old hint path location of ..\packages\Microsoft.Web.Services2.2.0.3.0\lib\net11\Microsoft.Web.Services2.dll when it should in fact be ..\packages\Microsoft.Web.Services2\lib\net11\Microsoft.Web.Services2.dll. Paket does properly download the nuget dependency to this location, it just doesn't update the csproj file hint path.

<Reference Include="Microsoft.Web.Services2">
 <HintPath>..\packages\Microsoft.Web.Services2.2.0.3.0\lib\net11\Microsoft.Web.Services2.dll</HintPath>
</Reference>