Thizzy'z Tree Feller

• Added AuraSkills compatibility (untested)

• Updated Vanillify (Fixed crash with recent builds of 1.21.1)

NOTE: although AuraSkills is a newer version of AureliumSkills, it is treated as an entirely different plugin; as such, they have different sections in the config. If you have previously configured AureliumSkills with TreeFeller, and have updated to AuraSkills, you will have to re-configure it.