conventions that include the token ``%(column_0_name)s``; the
constraint expression is scanned for columns.  Additionally,
naming conventions for check constraints that don't include the
``%(constraint_name)s`` token will now work for :class:`.SchemaType`-
generated constraints, such as those of :class:`.Boolean` and
:class:`.Enum`; this stopped working in 0.9.7 due to :ticket:`3067`.
fixes #3299

Connection.connection and engine.raw_connection()

for memoization on a class that uses slots.
- apply many more __slots__.  mem use for nova now at 46% savings

sort_tables_and_constraints function.
- The DDL generation system of :meth:`.MetaData.create_all`
and :meth:`.Metadata.drop_all` has been enhanced to in most
cases automatically handle the case of mutually dependent
foreign key constraints; the need for the
:paramref:`.ForeignKeyConstraint.use_alter` flag is greatly
reduced.  The system also works for constraints which aren't given
a name up front; only in the case of DROP is a name required for
at least one of the constraints involved in the cycle.
fixes #3282

zzzeeksphinx to omit these from warning

Conflicts:
	doc/build/orm/internals.rst

- attempt to add a script to semi-automate the fixing of links

and extensions into an external library, and also reorganizes most large documentation
pages into many small areas to reduce scrolling and better present the context
into a more fine-grained hierarchy.