Fix pep8 compliancy

Fix babel primitive types

- Make babel dependent primitive types to use Locale('en') for data
validation instead of current locale. Using current locale leads to
infinite recursion in cases where the loaded data has dependency to
the loaded object's locale.

Update release date

Bump version

Fix composite type null handling

Fix module import order

Fix composite array bind param process

Fix CompositeType

Fix CompositeType bind parameter processing when of the fields is
of TypeDecorator type.

Update changes

Bump version