Implement basic mechanics

[ScarletRedMan]

• Register/login
• Save/load backups
• Account comments
• Save settings
• Scores
• Search users
• Search levels #3
• Download levels
• Level comments
• Like comments/account comments/levels
• User level leaderboards
• Account comment history
• Upload/update levels
• Friend system
• Messager #4
• Map packs
• Gauntlets
• Moderator system
• Daily/weekly levels
• Quests
• Daily chests
• Report system
• Song storage
• Extract the user backup system to a separate service (use Amazon S3)