Add WSGIRequest.status_code

Fix error: Instance of 'WSGIRequest' has no 'status_code' member (but some types could not be inferred)
Add ugettext_lazy

Fix error: _ is not callable
Add CharField and DateField

Fix errors:
* Instance of 'CommaSeparatedIntegerField' has no 'split' member
* Instance of 'DateField' has no 'strftime' member
Suppress Meta class

Fix convention: Missing class docstring
Suppress Media class

Fixes:
* Convention: Missing class docstring
* Warning: Class has no __init__ method
* Convention: Old-style class defined
* Refactor: Too few public methods
Suppress MPTTMeta class from django-mptt module

Fixes:
* Convention: Missing class docstring
* Warning: Class has no __init__ method
* Convention: Old-style class defined
* Refactor: Too few public methods
Suppress View class

Fixes:
* Refactor: Method could be a function
* Warning: Unused argument 'request'
Suppress TestCase class

Fix refactor: Too many public methods
Suppress ModelAdmin class

Fix refactor: Too many public methods
Suppress Media class

Fix convention: Invalid class attribute name "js"
Suppress urls module

Fix convention: Invalid constant name "urlpatterns"
Suppress templatetags module

Fix convention: Invalid constant name "register"
Merging PR #18 from frost-nzcr4 ft-add-workarounds-for-common-members