Improve the grammar in the comments.
Change Mocha test to clear only data generated from tests.
Fixed a typo in comments
Clean some trailing commas in grunfile.js
Merge pull request #293 from reergymerej/master

Improve the grammar in the comments.
Merge pull request #300 from JChanut/master

Fixed a typo in comments
Update README.md
Update README.md
Merge remote-tracking branch 'upstream/master'