Fixed bug in HSTORE type where keys/values that contained
backslashed quotes would not be escaped correctly when
using the "non native" (i.e. non-psycopg2) means
of translating HSTORE data.  Patch courtesy Ryan Kelly.
[ticket:2766]

Conflicts:
	doc/build/changelog/changelog_09.rst
	lib/sqlalchemy/dialects/postgresql/hstore.py