Merge PR 26 to convert gulp tasks to npm scripts

Author: eriwen

.eslintrc.yml

@@ -23,3 +23,7 @@ rules:
   semi:
     - error
     - always
+  no-console:
+    - error
+    - allow:
+      - error

.travis.yml

@@ -18,4 +18,4 @@ before_install:
 before_script:
 - npm install
 script:
-- if [ "${TRAVIS_PULL_REQUEST}" = "false" ]; then gulp ci; else gulp test-pr; fi
+- if [ "${TRAVIS_PULL_REQUEST}" = "false" ]; then npm run lint && npm run test-ci; else npm run test-pr; fi

dist/stackframe.min.js

@@ -1,6 +1,6 @@
 module.exports = function(config) {
     if (!process.env.SAUCE_USERNAME || !process.env.SAUCE_ACCESS_KEY) {
-        console.log('Make sure the SAUCE_USERNAME and SAUCE_ACCESS_KEY environment variables are set.');
+        console.error('Make sure the SAUCE_USERNAME and SAUCE_ACCESS_KEY environment variables are set.');
         process.exit(1);
     }
 
@@ -156,7 +156,7 @@ module.exports = function(config) {
         },
         customLaunchers: customLaunchers,
         browsers: Object.keys(customLaunchers),
-        reporters: ['dots', 'saucelabs', 'coverage'],
+        reporters: ['dots', 'saucelabs', 'coverage', 'coveralls'],
         preprocessors: {
             'stackframe.js': 'coverage'
         },