Added start_dwarf_count offset (for dfusion)
Merge pull request #1 from warmist/patch-1

Added start_dwarf_count offset (for dfusion)
Make symbols.xml well-formed
Give some sensible looking names to the arrays in pregnancy_ptr.
Add food count values from Z-Status
Add child/baby age values
Preference types haven't changed since 23a - Plant2 == Tree
Add some info gathered from item filtering code.
A bit more info for corpses.
Update CSV
Identify misc_trait ID for Migrant status
Name some burrow-related fields properly.
Gloves+shoes+shields have UPSTEP, not UBSTEP
Add linux vtables for some refs and block events.
A few more vtables for linux.
Add ALL of the windows vtable ptrs
Identify a bunch of vectors in world based on some error messages
Add info about items encased in ice or stone.
Dragging info from warmist, new activity zone flag.
This is almost definitely unit chunks