$host.Version reports old extension version number in debug adapter

[daviwil]

In the 0.6.0 release of the PowerShell extension, $host.Version is supposed to report the version of the PowerShell extension that the user is running. However, it currently reports version 0.5.0 even though 0.6.0 is installed. This could be a bug in how VS Code's extension metadata API is pulling out the version number, must investigate.

[daviwil]

Turns out that this only occurs when running a script in the debugger. It's due to a hardcoded version in package.json since the version needs to be sent as a command line parameter to the host executable. We will need to update this hardcoded version by hand until they give us a way to use manifest variables as program parameters in debug adapter registration...