[ESLint] add meteor specific style guide

.eslintrc.yml

@@ -5,12 +5,12 @@ plugins:
 
 settings:
   import/core-modules:  # don't lint for these missing packages in package.json
-    - electron  # 'electron-prebuilt' is being used
+    - electron  # 'electron' is only needed as devDependency / global installation
 
 rules:
   indent:
     - 2  # error
     - 4  # number of spaces
 
-globals:
-  i18n: true  # don't warn about missing 'i18n' declaration
+globals:  # don't warn about missing declaration
+  i18n: true

gulpfile.js

@@ -3,7 +3,8 @@ import/no-extraneous-dependencies,
 no-console,
 strict,
 prefer-spread,
-arrow-body-style */
+arrow-body-style,
+import/no-unresolved */
 
 'use strict';
 

interface/.eslintrc.yml

@@ -0,0 +1,5 @@
+env:  # don't warn about no-def meteor keywords
+  meteor: true
+
+rules:
+  no-undef: 0