Patch release for 1.11 that improves stability and fixes some incorrect behavior.

• Doom: Crash trying to give a weapon unavailable in the current game mode (e.g., cheats)
• Map Renderer: Fatal error firing the BFG in DOOM mod “Astrostein”
• Server: Fatal error trying to use endgame
• Client: Applying window configuration command line options (e.g., -window)
• libdeng2: Performance improvements
• libcommon: Misinterpretation of skill level zero
• libcommon: Player movement speed inconsistensies
• Hexen: Ineffective Speed Boots
• XG: Incorrect handling of dummy lines

• 1.11.1 release notes
• 1.11 release notes