added regeneration of nmis.nginx to accomodate the static folder path
rewrite config only once
escape $ in config
adding backslash to the end of nmis_dir
:
adding nginx to gitignore since it's generated dynamically now
Merge pull request #257 from SEL-Columbia/nginx_dynamic_generate

Nginx dynamic generate
self merge
adding formhub-ossap as the new bucket, and change the syntax of photo attachment to reflex it