Fixed LOD issue so that LODs work again.

Updated (finally) to 0.6, including Research and new crafting recipes.

Addition:

-- Mannequin version of battle standard

Other:

-- A couple more LODs (low-poly long-distance versions) added for a few models

Additions:

-- Wieldable gladius (Roman legionary short sword) plus display & mannequin versions
-- Belt & baldric (sword belt) combo, for display & mannequin

Plus tons of model cleanup, optimizing, streamlining.

Fixed dumb typo with the wearable green shield model. It's wearable again!

Added two new items to blocks & mannequin:

-- Polished brass scale armour ("lorica squamata" -- ovelapping leaf-shaped scales attached to a leather backing)
-- Pilum (a Roman javelin with long thin shank, which in real-life would bend when it hit an enemy's shield -- so the enemy couldn't throw it back!)

-- Widened top of plume on all 3 versions of helmet to make plume look more impressive
-- Reduced polygon count of mannequin & worn helmets/plumed helmets by about 1/2, big optimization
-- Added LODs to worn scutum, big optimization there too
-- Cleaned up textures on mannequin plate armour

Fixed dumb typo keeping the mannequin from accepting a mailshirt for crafting.

Bugfix -- removed "melting" categories temporarily

Added wieldable spatha/longsword
Altered mannequin to wear a more "Roman" long red tunic