testing: replace coveralls with codecov (Submitty#51)

* test: use codecov for reporting coverage

* update readme

* fix build error

.codecov.yml

@@ -0,0 +1,16 @@
+codecov:
+  notify:
+    require_ci_to_pass: true
+
+coverage:
+  precision: 2
+  round: down
+
+  status:
+    project: true
+    patch: true
+    changes: false
+
+comment:
+  layout: "reach,diff,flags"
+  behavior: once

.travis.yml

@@ -22,8 +22,8 @@ script:
   - npm test
   - npm run build
 
-#after_script:
-#  - npm run coveralls
+after_script:
+  - npm run codecov
 
 notifications:
   email:

README.md

@@ -1,7 +1,7 @@
 # pdf-annotate.js
 
 [![Build Status](https://travis-ci.com/Submitty/pdf-annotate.js.svg?branch=master)](https://travis-ci.com/Submitty/pdf-annotate.js)
-[![Coverage Status](https://coveralls.io/repos/github/Submitty/pdf-annotate.js/badge.svg?branch=master)](https://coveralls.io/github/Submitty/pdf-annotate.js?branch=master)
+[![codecov](https://codecov.io/gh/Submitty/pdf-annotate.js/branch/master/graph/badge.svg)](https://codecov.io/gh/Submitty/pdf-annotate.js)
 
 Annotation layer for [PDF.js](https://github.com/mozilla/pdf.js). 
 

karma.conf.js

@@ -5,9 +5,6 @@ let reporters = [
   process.env.TRAVIS ? 'dots' : 'progress',
   'coverage-istanbul'
 ];
-if (process.env.COVERALLS_REPO_TOKEN) {
-  reporters.push('coveralls');
-}
 
 module.exports = function(config) {
   config.set({
@@ -83,7 +80,7 @@ module.exports = function(config) {
       }
     },
     coverageIstanbulReporter: {
-      reports: [ 'html', 'lcov', 'text-summary' ],
+      reports: [ 'html', 'lcovonly', 'text-summary' ],
       dir: path.join(__dirname, 'coverage'),
       combineBrowserReports: true,
       fixWebpackSourcePaths: true