escala 2+3: Meteor 1.8.3 -> 2.3 (Mongo 3.2 compatible), dead-package remediation

Reaches Meteor 2.3 building + running against Mongo 3.2, REST smoke test
byte-identical to the 1.6.1.1 baseline (all 12 Flutter endpoints green).

Dead/abandoned Atmosphere packages removed or replaced (the upgrade blockers):
- arkham:comments-ui (no Meteor 2.x build; pinned accounts-password@1.x):
  reimplemented the fire-page comments as a React feature:
    imports/api/Comments/ (collection, server methods, publication, media
    analyzers, new-fire-comment email) + imports/ui/components/Comments/CommentsBox.
    Comment text now rendered as safe plain text + image/youtube embed (was
    markdown-to-HTML). Wired into Fires.js; sitemaps.js + migration v11 updated
    to the new collection. Old Blaze/startup comments files deleted.
- nimble:restivus (REST API; pinned accounts-password@1.3.3, CoffeeScript source
  that crashes this build host): vendored as a local package
  packages/nimble-restivus with the .coffee precompiled to plain JS and the
  accounts-password constraint loosened to 2.x. REST behavior unchanged
  (verified by smoke test). This also dropped the entire iron:router stack.
- maximum:server-transform (+ peerlibrary:*, meteorhacks:zones/inject-initial):
  unused; removal broke Meteor.publishTransformed in FalsePositives publications
  -> replaced with plain Meteor.publish (no transform was configured).
- less, markdown (no source files), and the dead test stack
  (meteortesting:mocha, practicalmeteor:chai, xolvio:cleaner) which transitively
  pulled coffeescript@1.0.17 — the build plugin that crashed meteor-tool
  (node_contextify assertion) on this machine. Removing it unblocked the build.
- fourseven:scss 4.5.4 -> 4.14.1 (node-sass 4.5.3 doesn't build on node 12).

npm-mongo driver at 2.3 is 3.9.x — still compatible with the production Mongo
3.2 replica set.

imports/startup/client/comments.js

@@ -1,42 +0,0 @@
-/* global Comments */
-/* eslint-disable import/no-absolute-path */
-
-import i18n from '/imports/startup/client/i18n';
-import '/imports/startup/common/comments';
-
-import './comments.scss';
-
-i18n.init((err, t) => {
-  Comments.ui.setContent({
-    title: ' ', // i18n.t('Comentarios'),
-    save: t('Guardar'),
-    reply: t('Responder'),
-    edit: t('Editar'),
-    remove: t('Borrar'),
-    'placeholder-textarea': t('Añadir un comentario'),
-    'add-button-reply': t('Añadir una respuesta'),
-    'add-button': t('Añadir comentario'),
-    'you-need-to-login': t('Necesitas iniciar sesión para'),
-    'add comments': t('añadir comentarios'),
-    'like comments': t('puntuar comentarios'),
-    'rate comments': t('puntuar comentarios'),
-    'add replies': t('responder'),
-    'load-more': t('Más comentarios')
-  });
-
-  /* This in client side */
-  Comments.ui.config({
-    limit: 20, // default 10
-    loadMoreCount: 20, // default 20
-    /* generateAvatar: function genAvatar(user, isAnonymous) {
-      if (isAnonymous) {
-        return i18n.t('Anónimo');
-      }
-      return user.profile && user.profile.name && user.profile.name.first ? user.profile.name.first : null;
-    }, */
-    template: 'bootstrap', // default 'semantic-ui'
-    // default 'http://s3.amazonaws.com/37assets/svn/765-default-avatar.png'
-    defaultAvatar: '/default-avatar.png',
-    markdown: true
-  });
-});

imports/startup/client/comments.scss

@@ -1,29 +0,0 @@
-.comments-section {
-  width: 100%;
-}
-
-.comments-box {
-  max-width: inherit;
-  padding: 0;
-}
-
-p.comment-content {
-  /* white-space: pre-line; */
-}
-
-/* remove comment btn danger style */
-
-div.media-body.comment> div> div> div.btn.btn-danger.remove-action {
-  background-color: white;
-  border: 1px solid rgb(204, 204, 204);
-  color: rgb(51, 51, 51);
-}
-
-/* text-area height */
-.form-control .create-comment {
-  height: 9em;
-}
-
-.img-avatar {
-    margin-right: 5px;
-}