Headerchange

[RachellCalhoun]

I changed almost all pages to have a similar header of background image, dark cover and white font. I'll wait for confirmation before changing spanish ones as well.

[jinpark]

Theres a lot of repeated code here. Is there a way that we can use template inheritance {% includes xyz.html %} to make this cleaner?

ref: https://docs.djangoproject.com/en/1.9/ref/templates/builtins/#include