Medieval Factions 4.6.4.1 (Declare War Command Arg Requirement Fix)

What's Changed

• Declare War Command Arg Requirement Fix by @dmccoystephenson in #1395
• Changed version to 4.6.4.1 by @dmccoystephenson in #1396
• Made some minor improvements to the code. by @dmccoystephenson in #1397

Full Changelog: 4.6.4...4.6.4.1