updates lint config

Adds trailing spaces, mixed tabs/spaces, and missing semicolons as
errors. Also set to require 100% test coverage.

.eslintrc

@@ -173,13 +173,13 @@
     "no-continue": 0,
     "no-inline-comments": 0,
     "no-lonely-if": 0,
-    "no-mixed-spaces-and-tabs": 0,
+    "no-mixed-spaces-and-tabs": 2,
     "no-multiple-empty-lines": 0,
     "no-nested-ternary": 0,
     "no-new-object": 0,
     "no-spaced-func": 0,
     "no-ternary": 0,
-    "no-trailing-spaces": 0,
+    "no-trailing-spaces": 2,
     "no-underscore-dangle": 2,
     "one-var": 0,
     "operator-assignment": 0,
@@ -188,7 +188,7 @@
     "quote-props": 0,
     "quotes": 0,
     "semi-spacing": 0,
-    "semi": 0,
+    "semi": 2,
     "sort-vars": 0,
     "space-after-keywords": 0,
     "space-before-blocks": 0,

package.json

@@ -34,7 +34,7 @@
     "sinon": "1.16.1"
   },
   "scripts": {
-    "test": "lab --lint --coverage",
+    "test": "lab --lint --threshold 100",
     "gen-coverage": "lab --coverage --reporter lcov --output coverage/lcov.info"
   },
   "main": "./lib/demeteorizer",