Log Message:
py-alembic: updated to 0.9.7

0.9.7
[bug] [autogenerate] Fixed regression caused by 421 which would cause \ 
case-sensitive quoting rules to interfere with the comparison logic for index \ 
names, thus causing indexes to show as added for indexes that have \ 
case-sensitive names. Works with SQLAlchemy 0.9 and later series.
[bug] [autogenerate] [postgresql] Fixed bug where autogenerate would produce a \ 
DROP statement for the index implicitly created by a Postgresql EXCLUDE \ 
constraint, rather than skipping it as is the case for indexes implicitly \ 
generated by unique constraints. Makes use of SQLAlchemy 1.0.x’s improved \ 
“duplicates index” metadata and requires at least SQLAlchemy version 1.0.x \ 
to function correctly.