fix logging bug for queries with braces
add schema constraint for type ids
add constraints for instances with unique attrs
instance labels
drop constraints in destroy
laels for types
bump py2neo
refactor get_labels_for_type
tidy
handle labels in change_instance_type
labels for unique attrs and static parents
use descriptors
handle nodes with no labels
typo
tests
need constraint for type system
changes
bugfix for how we determine a type is static
scale back labels to only cover unique attributes
flakes