Build 25820098

Changes
- Playtesters are shown the bug report button at the start of the tutorial.
- Promoted zappers now have 6 charge instead of 4.
- Saves record the game version, and Continue only offers saves from the current version.

Fixes:
- Playtest players couldn't use steam to connect multiplayer games.
- Blood cells could be dropped onto immune cells
- Continue loaded saves from older game versions which probably never broke but is dangerous
- The lobby screen remaining wins and rank were not displaying correctly
- The sell window sometimes stayed open after a drag ended. (this fix was up in yesterdays release actually)
- Crash could occur if clicking repeatedly on a sell with the combine target flashing effect.
- Tackle cells didn't flash
- Placement validation could be weird when placing rectangular cells
- Multiplayer (human v human) games were double uploading replays (no they don't upload them at all)