Update travis setup, run linter on travis

.travis.yml

@@ -6,6 +6,15 @@ node_js:
   - "8"
   - "node"
 
+sudo: false
+script:
+  - npm run test
+  - npm run lint
+
+git:
+  depth: 1
+  submodules: false
+
 cache:
   directories:
     - "node_modules"

gulpfile.js

@@ -14,10 +14,10 @@ gulp.task('test', ['build'], function() {
     return gulp.src("dist/*.spec.js").pipe(jasmine());
 });
 
-gulp.task('tslint', function() {
+gulp.task('lint', function() {
     return tsProject.src()
         .pipe(tslint({"formatter": "verbose"}))
         .pipe(tslint.report());
 });
 
-gulp.task('default', ['tslint', 'build', 'test'])
+gulp.task('default', ['build', 'test', 'lint'])

package.json

@@ -16,8 +16,8 @@
     "typescript": "^2.6.2"
   },
   "scripts": {
-    "gulp": "gulp",
-    "test": "gulp test"
+    "test": "gulp test",
+    "lint": "gulp lint"
   },
   "repository": {
     "type": "git",