Fixed Merging Issues and Other Glaring Problems

Some stuff needed renaming, some stuff needed re-adding, some stuff
needed editing, some stuff needed an unlocalized name set, and other
stuff entirely needed their own metadata class. However, the lang file
basically got a large overhaul.
Delete Forge Changelog
Prevent future forge changelogs
Added Floor 2 Above Floor 1

May need to make some workarounds to make them look less exactly the
same. Also fixed the aincrad leaf block doing incorrect rendering, and
made an SAO leaf class for future other kinds of leaves.
Added in 100 Floors as Templates

Floors are now represented in data as Floor Points, which store lots of
data about how the floor gets generated in world gen. There are a few
helper methods to make sure that changing one of them excessively does
not mess anything up. These starter points and their data are then used
to generate the floors in world gen. We can also use them to add the
towers and dungeons in, based on the center point and the size of the
floors.
Merge remote-tracking branch 'origin/Ian' into dev