support mysql options files in reset_db
support mysql options files in reset_db

Django supports mysql option files
(see https://docs.djangoproject.com/en/dev/ref/databases/#connecting-to-the-database).

This commit adds support for pulling in connection data from a
mysql options file for `reset_db`. This code follows the priority
order as given in the documentation above:

    OPTIONS.
    NAME, USER, PASSWORD, HOST, PORT
    MySQL option files.

frewsxcv/django-extensions,nikolas/django-extensions,ctrl-alt-d/django-extensions,levic/django-extensions,helenst/django-extensions,rodo/django-extensions,mandx/django-extensions,artscoop/django-extensions,atchariya/django-extensions,rodo/django-extensions,Moulde/django-extensions,lamby/django-extensions,VishvajitP/django-extensions,helenst/django-extensions,gvangool/django-extensions,bionikspoon/django-extensions,gvangool/django-extensions,bionikspoon/django-extensions,VishvajitP/django-extensions,maroux/django-extensions,barseghyanartur/django-extensions,helenst/django-extensions,levic/django-extensions,VishvajitP/django-extensions,joeyespo/django-extensions,artscoop/django-extensions,django-extensions/django-extensions,jpadilla/django-extensions,t1m0thy/django-extensions,dpetzold/django-extensions,JoseTomasTocino/django-extensions,django-extensions/django-extensions,jpadilla/django-extensions,ewjoachim/django-extensions,lamby/django-extensions,haakenlid/django-extensions,kevgathuku/django-extensions,rodo/django-extensions,maroux/django-extensions,levic/django-extensions,ctrl-alt-d/django-extensions,haakenlid/django-extensions,nikolas/django-extensions,nikolas/django-extensions,github-account-because-they-want-it/django-extensions,JoseTomasTocino/django-extensions,kevgathuku/django-extensions,joeyespo/django-extensions,maroux/django-extensions,joeyespo/django-extensions,Moulde/django-extensions,atchariya/django-extensions,dpetzold/django-extensions,jpadilla/django-extensions,django-extensions/django-extensions,ewjoachim/django-extensions,lamby/django-extensions,barseghyanartur/django-extensions,JoseTomasTocino/django-extensions,artscoop/django-extensions,zefciu/django-extensions,github-account-because-they-want-it/django-extensions,linuxmaniac/django-extensions,gvangool/django-extensions,atchariya/django-extensions,t1m0thy/django-extensions,zefciu/django-extensions,marctc/django-extensions,dpetzold/django-extensions,mandx/django-extensions,frewsxcv/django-extensions,Moulde/django-extensions,kevgathuku/django-extensions,frewsxcv/django-extensions,bionikspoon/django-extensions,linuxmaniac/django-extensions,marctc/django-extensions,zefciu/django-extensions,linuxmaniac/django-extensions,ctrl-alt-d/django-extensions,mandx/django-extensions,barseghyanartur/django-extensions,github-account-because-they-want-it/django-extensions,ewjoachim/django-extensions,t1m0thy/django-extensions,marctc/django-extensions,haakenlid/django-extensions