[3.5.0] Added auto replant, couple new config settings relating to it:

• Added an auto replant function, so saplings are automatically replanted once you chop down a tree. Works for 1x1 and 2x2 trees. Honestly it should work for any size width (base) tree.
  
• As a result of autoreplant, there are two new config settings: autoReplant and saplingDrop. Both boolean values, the autoReplant is self explanatory: true if you want trees to replant themselves false if not. Set saplingDrop to true if you want sapling to drop with logs, or false if not.
  
• Just to note, autoReplant and saplingDrop are only applicable to Lumberjack methods, not the Gravity method.
  
• No commands yet to change the config values for these two new settings yet. No tabcompleters either. Cannot see their current config settings if you type /tg settings either. Will update this in a day or two.

**Sorry about the multiple updates in such a short time, didn't think I'd make this much progress so quickly. As always, let me know of ANY bugs or suggestions on the discussion page. Thanks!!