V1.6.5.0

Zero-K v1.6.5.0 - Fancy shields

The fixes and features have stacked to the point that it is time to make a content release. The most noticable change is the much improved shield shader, which only just missed out on inclusion in our initial release. A notable fix is to overkill prevention against healing targets as this was reasonably easy to trigger with light artillery.

Added fancy hex grid shield with a wobble effect on impact.
Improved Ramp terraform tooltip to make it clearer how to change height.
"Exit to Lobby" resigns. If you want to leave and reconnect, for whatever reason, go to Lobby (F11) and press Leave.
Default to All Chat when you have no teammates.
Added a button to the top left of the UI for defence range settings. Added a setting to draw scouted radar ranges.
Updated Kamikaze trophy icon.
Fixed some main menu tooltip bugs.
Fixed some reconnection detection issues.
Fixed low command visibility settings.
Fixed Guardian steel skin.
Fixed overkill prevention against targets which are regenerating or being repaired.
Fixed various minor bugs an errors, especially relating to save/load.