render build string in actual use, not the config one

[wallacerob]

[davtamay]

What's the idea on getting the current build string? I am displaying what we receive in SessionDetailsString, Should I look somewhere else for that information?

[davtamay]

[wallacerob]

SessionDetailsString has the configured build string, but for us devs, when we change the build in the LabDetail page, it would be nice to have that displayed in the VR UI. You would get this by parsing the URL for build scope and version. Not a high priority, just something I wanted to eventually do.

[wallacerob]

I can take this issue, as it would be a WebGLTemplate fix