Testing the importer without transactions

The transaction was too large, and should an import fail
the only option is to rollback the db anyway, this can be achieved via
the rollbacks api.

Testing the import process without transactions to see if it helps
Redis related cleanup for test suite
Change dates in integration specs
Merge branch 'fixing_slow_tests' into remove-transactions
Fix specs related to transactions
Merge pull request #185 from bitzesty/remove-transactions

Remove transactions from the importer