Switch to Istanbul for code coverage. Add coverage to CI via coveralls.

.gitignore

@@ -42,3 +42,4 @@ test/config.js
 /lib-cov
 /src-cov
 /coverage.html
+/coverage

.travis.yml

@@ -4,3 +4,6 @@ node_js:
 notifications:
   email:
     false
+script: npm test --coverage
+after_success:
+- npm run coveralls

Makefile

@@ -1,16 +0,0 @@
-all:
-	./node_modules/.bin/gulp
-
-test:
-	mocha --reporter spec test/*-test.js
-
-coverage:
-	rm -rf src-cov
-	mkdir src-cov
-	mkdir src-cov/js
-	jscoverage --no-highlight src/js/ripple src-cov/js/ripple
-	RIPPLE_LIB_COV=1 mocha --reporter html-cov test/*-test.js > coverage.html
-	rm -rf src-cov
-
-
-.PHONY: test coverage all

README.md

@@ -1,5 +1,7 @@
 #The Ripple JavaScript Library
 
+[![Build Status](https://travis-ci.org/ripple/ripple-lib.svg?branch=develop)](https://travis-ci.org/ripple/ripple-lib) [![Coverage Status](https://coveralls.io/repos/ripple/ripple-lib/badge.png?branch=develop)](https://coveralls.io/r/ripple/ripple-lib?branch=develop)
+
 [![NPM](https://nodei.co/npm/ripple-lib.png)](https://www.npmjs.org/package/ripple-lib)
 
 `ripple-lib` connects to the Ripple network via the WebSocket protocol and runs in Node.js as well as in the browser.
@@ -92,4 +94,4 @@ See [The `ripple-lib` Guides](docs/GUIDES.md) and [The `ripple-lib` API Referenc
 
 **Generating code coverage**
 
-ripple-lib uses `jscoverage` to generate code coverage. To generate a file `coverage.html`, run `make coverage`
+ripple-lib uses `istanbul` to generate code coverage. To create a code coverage report, run `npm test --coverage`. The report will be created in `coverage/lcov-report/`.

package.json

@@ -26,11 +26,14 @@
     "gulp-concat": "~2.2.0",
     "gulp-jshint": "~1.5.5",
     "webpack": "~1.1.10",
-    "map-stream": "~0.1.0"
+    "map-stream": "~0.1.0",
+    "istanbul": "~0.2.10",
+    "coveralls": "~2.10.0"
   },
   "scripts": {
     "pretest": "node_modules/.bin/gulp concat-sjcl",
-    "test": "mocha --reporter spec test/*-test.js"
+    "test": "./node_modules/.bin/istanbul test -x build/sjcl.js -x src/js/jsbn/* ./node_modules/.bin/_mocha -- --reporter spec test/*-test.js",
+    "coveralls": "cat ./coverage/lcov.info | ./node_modules/.bin/coveralls"
   },
   "repository": {
     "type": "git",