Log Message:
Changes 1.7.5:
Bugfixes:
* Reverted a fix that prevented a migration crash when unapplying \ 
contrib.contenttypes’s or contrib.auth’s first migration (24075) due \ 
to severe impact on the test performance (24251) and problems in multi-database \ 
setups (24298).
* Fixed a regression that prevented custom fields inheriting from \ 
ManyToManyField from being recognized in migrations (24236).
* Fixed crash in contrib.sites migrations when a default database isn’t \ 
used (24332).
* Added the ability to set the isolation level on PostgreSQL with psycopg2 \ 
≥ 2.4.2 (24318). It was advertised as a new feature in Django 1.6 but it \ 
didn’t work in practice.
* Formats for the Azerbaijani locale (az) have been added.