docs: mention working with frontend using grunt and polymer

docs/contributing/dev-setup.rst

@@ -111,15 +111,18 b' time operation::'
 Compile CSS and JavaScript
 ^^^^^^^^^^^^^^^^^^^^^^^^^^
 
-To use the application's frontend, you will need to compile the CSS and
-JavaScript with Grunt. This is easily done from within the nix-shell using the
-following command::
+To use the application's frontend and prepare it for production deployment,
+you will need to compile the CSS and JavaScript with Grunt.
+This is easily done from within the nix-shell using the following command::
+
+    grunt
 
-    make web-build
+When developing new features you will need to recompile following any
+changes made to the CSS or JavaScript files when developing the code::
 
-You will need to recompile following any changes made to the CSS or JavaScript
-files.
+    grunt watch
 
+This prepares the development (with comments/whitespace) versions of files.
 
 Start the Development Server
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^

docs/contributing/standards.rst

@@ -45,6 +45,11 b' JavaScript'
 ----------
 This currently remains undefined. Suggestions welcome!
 
+However, we have decided to go forward with W3C standards and picked
+WebComponents as the foundation of user interface. New functionality should
+be implemented as components using the
+`Polymer Project` <https://www.polymer-project.org>`_ library
+and should avoid external dependencies like `jquery`.
 
 HTML
 ----