-Tweaked MapWnd::RenderVisibilityRadii to skip stale and less than partially visible objects.
-Added species tag checking to Ship::HasTag.

git-svn-id: https://freeorion.svn.sourceforge.net/svnroot/freeorion/trunk@5732 dbd5520b-6a0a-0410-a553-f54834df5b05
Small patch by unjashfan to exclude outposts from Nascent AI tech effect.

git-svn-id: https://freeorion.svn.sourceforge.net/svnroot/freeorion/trunk@5733 dbd5520b-6a0a-0410-a553-f54834df5b05
Merge remote-tracking branch 'svn-mirror/master'