Resize processor: Externalized transparency padding into new class Mat
Resize processor: Externalized transparency padding into new class Mat

Conflicts:

	imagekit/processors/resize.py

FundedByMe/django-imagekit,pcompassion/django-imagekit,tawanda/django-imagekit,pcompassion/django-imagekit,pcompassion/django-imagekit,tawanda/django-imagekit,FundedByMe/django-imagekit