DailyRewards v1.2.2

Here is 1.2.2! Let's check what's changed:

• Fixed dangerous bug in ITEM reward
• Added /dr help command
• Added custom reward message for every day! Just add reward-message: "Here's reward". Example is here: https://github.com/SkyFire55/daily-rewards/blob/master/src/main/resources/assets/dailyrewards/DailyRewards.conf (string 13)
• A lot of little optimizations in code