Don't barf on Session(info=...) from sessionmaker(info=None)
typo in changelog
- support addition of fails_if()/only_on(), just wraps the decorators
- update a few exclusions to support current pymssql.  passes all of test_suite and dialect/mssql
.pyo
- Fixed regression where we apparently still create an implicit
alias when saying query(B).join(B.cs), where "C" is a joined inh
class; however, this implicit alias was created only considering
the immediate left side, and not a longer chain of joins along different
joined-inh subclasses of the same base.   As long as we're still
implicitly aliasing in this case, the behavior is dialed back a bit
so that it will alias the right side in a wider variety of cases.
[ticket:2903]
- A quasi-regression where apparently in 0.8 you can set a class-level
attribute on declarative to simply refer directly to an :class:`.InstrumentedAttribute`
on a superclass or on the class itself, and it
acts more or less like a synonym; in 0.9, this fails to set up enough
bookkeeping to keep up with the more liberalized backref logic
from :ticket:`2789`.  Even though this use case was never directly
considered, it is now detected by declarative at the "setattr()" level
as well as when setting up a subclass, and the mirrored/renamed attribute
is now set up as a :func:`.synonym` instead. [ticket:2900]
- Fixed regression where we don't check the given name against the
correct string class when setting up a backref based on a name,
therefore causing the error "too many values to unpack".  This was
related to the Py3k conversion. [ticket:2901]
Merge bitbucket.org:rschoon/sqlalchemy into t
- changelog for pullreq 9 from bitbucket
Merged in davidszotten/sqlalchemy/doc_typo (pull request #10)

typo in changelog
- Fixed an extremely unlikely memory issue where when using
:class:`.DeferredReflection`
to define classes pending for reflection, if some subset of those
classes were discarded before the :meth:`.DeferredReflection.prepare`
method were called to reflect and map the class, a strong reference
to the class would remain held within the declarative internals.
This internal collection of "classes to map" now uses weak
references against the classes themselves.
- Fixed regression where using a ``functools.partial()`` with the event
system would cause a recursion overflow due to usage of inspect.getargspec()
on it in order to detect a legacy calling signature for certain events,
and apparently there's no way to do this with a partial object.  Instead
we skip the legacy check and assume the modern style; the check itself
now only occurs for the SessionEvents.after_bulk_update and
SessionEvents.after_bulk_delete events.  Those two events will require
the new signature style if assigned to a "partial" event listener.
[ticket:2905]