Update notes for v1.2.1 — File Under Kingdom Steam update #553800

Added: - An Undo Button that will remove the most recent building placed down by the player. - Several tool tips for buttons as well as the dialogue screen after the first campaign level to better explain how the player can change the story. - Castles for the Freeplay maps as well as an option to play with or without unlimited funds. Fixed: - When exiting to the main menu from the pause menu, the board/map could be seen resetting to its starting state, now it should reset once hidden from view.