Change build system to use good ol' make

Author: felipernb

.travis.yml

@@ -1,5 +1,5 @@
 language: node_js
 node_js:
   - "0.10"
-script: "npm run-script coverage"
-after_success: "npm run-script coveralls"
+script: "make"
+after_success: "make coveralls"

Makefile

@@ -0,0 +1,17 @@
+all: jshint test coverage
+
+setup:
+	npm install
+
+jshint: setup
+	jshint algorithms data_structures test util
+
+test: setup
+	mocha -R spec --recursive test
+
+coverage: setup
+	istanbul cover ./node_modules/.bin/_mocha -- -R spec --recursive test
+
+coveralls:
+	cat ./coverage/lcov.info | ./node_modules/coveralls/bin/coveralls.js
+