Merge pull request #44 from philchristensen/master

Documentation updates regarding Foreign Keys
Fixed statistics of big query test as skipped if not enough data.
Fixed verbose_name in introspection
Fixed undefined name typo
Set low retries number. (related to #42)
Increased code coverage by improved coverage_run
Fixed query.py to work with inspectdb in Django 1.7
Implemented a simple Generic foreign key support. #45
Updated tox (Django version)
Fixed Meta class in example.models according to fixed README. closed #2

Fixed bug: the command `python manage.py syncdb --database=default` caused
`Creating table BusinessHours`
Merge pull request #46 from freelancersunion/generic-foreign-key-support

Simple generic foreign key support
Merge pull request #49 from hynekcer/wrk

Fixed Meta class in example.models according to fixed README. closed #2
Merge remote-tracking branch 'union/generic-foreign-key-support' into HEAD
Fixed infinite loop with slow memory overfow in "values()" queryset method.

Closes #50.
Fixed reproducible raw queryset length bug
Support for "cursor.execute(sql)" direct queries.
Fixed a usable default size for "fetchmany()"
Fixed typography related to previous commits.
Merge pull request #51 from hynekcer/bugfixes

Bugfixes: Infinite loop .objects.values() #50
Added configuration variable REQUESTS_MAX_RETRIES temporary

until #42 will be fixed definitely.