Introduce karma.
Use karma-mocha-reporter.
use mocha style in karma debug page.
Add the XHR test which uses API mock server.
Add the script to execute tests.
Define npm test.
Merge pull request #3 from saneyuki/test

Define 'npm test'
Use single quote in node scripts.
Merge pull request #4 from saneyuki/quote

Use single quote in node scripts.
Remove testem.json
Use 'gulp jstest' instead of 'gulp espower'.
Merge pull request #5 from saneyuki/fix

Fix
Merge branch 'master' into react

* master:
  Use 'gulp jstest' instead of 'gulp espower'.
  Remove testem.json
  Use single quote in node scripts.
  Define npm test.
  Add the script to execute tests.
  Add the XHR test which uses API mock server.
  use mocha style in karma debug page.
  Use karma-mocha-reporter.
  Introduce karma.

Conflicts:
	gulpfile.js
	package.json