BuildDeps.cmd: do not check Visual Studio version using GENERATOR, but use VS_VER instead.
Do not modify kNet CMakeLists.txt, as boost & tinyxml options are now available.
Windows deps: Remove hacking around kNet cmake as this has now been fixed to its stable branch.
Merged latest KdTree code from MathGeoLib.
GetAttribute() -> AttributeByName() in ECAttributeEditor.
Force linking of ws2_32 when linking kNet on Windows.
Merge remote-tracking branch 'remotes/adminotundra/tundra2_win64_pull_request' into tundra2
Merge remote-tracking branch 'rex/tundra2' into admino_tundra

Conflicts:
	tools/Windows/BuildDeps.cmd