Update JetStream manifest to support x64

[AlenPelin]

Old version of JetStream didn't support x64 out of the box, so we updated the manifest to install it with x86 only as the easiest way. Current version of JetStreem does support x64 without any additional changes so we need to remove this limitation.

[DmitryKolinchuk]

The "\SIM.Tool\Manifests\Standalone\Jetstream.manifest.xml" file has the following content in SIM 1.1.7.0:

<manifest version="1.4">
  <standalone>
    <name>Sitecore Jetstream</name>
    <shortName>jet</shortName>
    <limitations>
      <framework>
        <supportedVersion attr="2">v4.0 32bit</supportedVersion>
      </framework>
    </limitations>
  </standalone>
</manifest>