fix(travis): set progress to false (speed up npm)

.travis.yml

@@ -2,6 +2,7 @@ language: node_js
 node_js:
   - 8
 install:
+  - npm set progress=false
   - npm install
 script:
   - npm run build

tslint.json

@@ -116,12 +116,6 @@
       "check-separator",
       "check-type"
     ],
-    "directive-selector": [
-      true,
-      "attribute",
-      "app",
-      "camelCase"
-    ],
     "component-selector": [
       true,
       "element",