Et fe replace env.js with angular environments

Originally, we wanted the environment configuration to be adjustable via changing a js files after an angular build. This was accomplished using env.js and an env service. Now that we are working towards CI/CD, it makes more sense to rely on Angular's built-in environment system. This branch makes that change over.

apps/web/README.md

@@ -26,11 +26,13 @@ Run `ng e2e` to execute the end-to-end tests via [Protractor](http://www.protrac
 
 To get more help on the Angular CLI use `ng help` or go check out the [Angular CLI README](https://github.com/angular/angular-cli/blob/master/README.md).
 
-## Archive Config
+## Environment Config
 
-Configuration variables can be set in the env.js file located next to the index.html file. These variables will be loaded into the angular app through the EnvService. 
+Configuration variables can be set in `src/environments` directory.
 
-The env.js file can be modified without having to rebuild the application.
+To use a configuration in a build, run `ng build --c=production` or `ng build --c=test`.
+
+To use a configuration locally, run `ng serve --c=production` or `ng serve --c=test`.
 
 ## Search Filters