Reduce allocation alignment to 16 bytes.

The previous 32-byte alignment was a bit excessive and wasted a fair
amount of memory, especially when the majority of the allocations are ~16
bytes.
Fixed version number string
Fix #40 - Armor model now removed on map restart

On map restart, the G2 models for player armor was not being cleared up as
it should have been (inventory is cleared on restart). This commit fixes
this issue.