New rule: No default assignment with ternary operator

This is no longer allowed:

var a = x ? x : 1

In favor of:

var a = x || 1

eslintrc.json

@@ -99,7 +99,7 @@
     "no-undef": 2,
     "no-undef-init": 2,
     "no-unexpected-multiline": 2,
-    "no-unneeded-ternary": 2,
+    "no-unneeded-ternary": [2, { "defaultAssignment": false }],
     "no-unreachable": 2,
     "no-unused-vars": [2, { "vars": "all", "args": "none" }],
     "no-useless-call": 2,