Merge pull request #6 from uncountableinc/jason/operators-changes

Merge pull request #5 from uncountableinc/jason/operators-changes

add types for column operators to remove type ignores

Merge pull request #4 from uncountableinc/mgm/mapped-alias

Mgm/mapped alias

Merge pull request #3 from uncountableinc/jason/mapped

change parent class of instrumented attribute

Merge pull request #2 from uncountableinc/jason/mapped

try exporting Mapped

Merge pull request #1 from uncountableinc/jason/mapped

add mapped attribute

Fix literal_column type (dropbox#189)

literal_column('foo', sqlalchemy.Integer) should be ColumnClause[int],
not ColumnClause[TypeEngine[int]].

Signed-off-by: Anders Kaseorg <andersk@mit.edu>

Signed-off-by: Anders Kaseorg <andersk@mit.edu>