fix(tools): Exclude test files from coverage.

Because our main test file is in a lib we need to exclude it. Once you set a custom exclude you have
to add back in all the nyc defaults as well.

package.json

@@ -31,8 +31,8 @@
     "cracks": "^3.1.2",
     "cz-conventional-changelog": "^2.0.0",
     "husky": "^0.14.3",
-    "validate-commit-msg": "^2.12.2",
-    "semantic-release": "^6.3.6"
+    "semantic-release": "^6.3.6",
+    "validate-commit-msg": "^2.12.2"
   },
   "config": {
     "commitizen": {
@@ -42,5 +42,13 @@
   "repository": {
     "type": "git",
     "url": "https://github.com/mikeal/lucass.git"
+  },
+  "nyc": {
+    "exclude": [
+      "lib/test-basics.js",
+      "tests",
+      "tests/*",
+      "**/node_modules/**"
+    ]
   }
 }