Shift-Focus on a city I don't own allows me to see the city details

[jinxremoving]

Shift focus on a city I don't own lets me see what it is building, what it has already built, build times, etc. Commit 20fc89a.

[vans163]

This is due to Firaxis not including basic checks in the game core dlls. This should be submitted as a bug to Firaxis. The game should not be so easy to exploit (this will work online).

I do see the appropriateness to not be able to zoom into cities that are not yours for accidental click reasons though. Will take a look at it.