walkthrough: Change commit flags, fix typo.

(cherry picked from commit 38844448a216ebed2698cdefe47ad47ffec37d6e)
excalibur: Parse ticks pre-shuffle.

(cherry picked from commit fa6e95eae86b7ac4f16fed1ccbd3b332b89a1215)
excalibur: Find one-planet alliances missed due to missed ticks.

(cherry picked from commit dcbeae88d8675c8dea94f97bb8a465936e2e2bb0)