Build: Upgrade to typescript 2.2.1

.travis.yml

@@ -1,4 +1,4 @@
 language: node_js
 node_js:
-  - "4.4"
+  - "6.9.5"
 after_success: 'npm run coverage && npm run coveralls'

package.json

@@ -14,7 +14,7 @@
     "build-vendor:css": "cat node_modules/material-design-lite/material.min.css > demo/vendor.css",
     "transpile": "rm -rf transpiled/ && tsc",
     "test": "ts-node ./tests/unit/jasmine.ts || true",
-    "coverage": "echo 'Running unit tests...' && mkdir -p tests/coverage && ts-node node_modules/istanbul/lib/cli.js cover --captureExceptions --config=./tests/istanbul.yml ./tests/unit/jasmine.ts",
+    "coverage": "echo 'Running unit tests...' && mkdir -p tests/coverage && ts-node --compilerOptions '{\"target\":\"es6\"}' node_modules/istanbul/lib/cli.js cover --captureExceptions --config=./tests/istanbul.yml ./tests/unit/jasmine.ts",
     "coveralls": "cat ./tests/coverage/lcov.info | ./node_modules/coveralls/bin/coveralls.js",
     "build-js-min": "echo 'Building gefri.min.js...' && browserify src/gefri.ns.ts -p [tsify] --standalone gefri | uglifyjs -c warnings=false > dist/gefri.min.js",
     "build-js": "echo 'Building gefri.js...' && browserify src/gefri.ns.ts -p [tsify] -v --debug -o --standalone gefri > demo/gefri.js || true && npm run done --silent",
@@ -55,9 +55,9 @@
     "jsdom": "9.4.1",
     "npm-run-all": "3.1.0",
     "rxjs": "5.0.0-beta.12",
-    "ts-node": "1.4.3",
+    "ts-node": "2.1.0",
     "tsify": "2.0.2",
-    "typescript": "2.0.3",
+    "typescript": "2.2.1",
     "uglify-js": "2.7.0",
     "zone.js": "0.6.25"
   },