Upgrade co to v4.0.0; Use co-mocha@1.0.4
Use native v8 Promise for promisify
Fix all tests for new co
Change log for v0.1.4
v0.1.4
Fix promisify
Test with co 4.0
Fuck silent error in promise
Use exactly should 4.0.4
Merge branch 'dev'

* dev:
  Use exactly should 4.0.4
  Fuck silent error in promise
  Test with co 4.0
  Fix promisify
  v0.1.4
  Change log for v0.1.4
  Fix all tests for new co
  Use native v8 Promise for promisify
  Upgrade co to v4.0.0; Use co-mocha@1.0.4