* Retrive the SDK version from the '.version' file; test the version from the LKG SDK not the version from the current CLI; update the LKG CLI to: 3.0.100-alpha1-009408
* Update SDK version; do not use the assembly to determine version.
* Return string.Empty() from GetProductVersion() so that the callers have more logic options.
* Use the SDK Version for the sentinel file-names; use the SDK Version for the 'multicoreJitProfilePath'
* Use the SDK version exclusively.