v1.2.6 - Bug fixes, block data, API, and more

==== Source Changes: ====
* - Removed bPermissions dependancy
* - Code cleanups
* - Added basic developer API - WeaponLevelsAPI

==== Game Changes: ====
* + Blocks retain experience data after being placed
* + Furnaces and Workbenches gain experience from being used
* ~ Fixed bug requiring bPermissions to run
* ~ Fixed bug overwriting configs
* ~ Names from other plugins wont be overwritten
* ~ Fixed bows and arrows
* ~ Fixed console spam when bare-handed
* ~ Fixed console spam: "Error reading experience bar!"