Enabling gzip responses for all calls to /api.
Configuring nginx to directly serve static files and to set max expiration on static CSS/JS.
Collapsing SSL configuration in with basic configuration to avoid having to duplicate all the location rules.
Removing "ssl on;" since the setting is implied by "listen 443 ssl".
Merge branch 'feature/shop_mode'

* feature/shop_mode:
  Removing "ssl on;" since the setting is implied by "listen 443 ssl".
  Collapsing SSL configuration in with basic configuration to avoid having to duplicate all the location rules.
  Configuring nginx to directly serve static files and to set max expiration on static CSS/JS.
  Enabling gzip responses for all calls to /api.