Syn for basolateral amygdala. Issue #630
lifted nifstd defs
Using nlx and mp for definition sources replacing select WP defs #633
Added various defs from MP
Improvements to:
 - ligaments
 - vertebral arches
 - reproductive system development
 - heart and veins
NTs: inflow tracts
NTs: gubernacular bulb parts
Fixes to developing neural tube / CNS
More defs from WP
vitelline vasculature improvement
cranial nerve improvements. Fixes #634
more for #634