Fix random failing caused by coveralls issues (#15)

Author: aivus

.travis.yml

@@ -9,3 +9,6 @@ node_js:
   - "0.11"
   - "0.10"
   - "iojs"
+
+after_success:
+  - travis_retry coveralls < coverage/lcov.info

package.json

@@ -5,7 +5,7 @@
   "readmeFilename": "README.md",
   "main": "index.js",
   "scripts": {
-    "test": "istanbul cover ./node_modules/mocha/bin/_mocha --report lcovonly -- -R spec && cat ./coverage/lcov.info | ./node_modules/coveralls/bin/coveralls.js && rm -rf ./coverage"
+    "test": "istanbul cover ./node_modules/mocha/bin/_mocha --report lcovonly -- -R spec"
   },
   "keywords": [
     "parser",