Rename git.username to git.name
Merge pull request #516 from zenorocha/rename

Rename git.username to git.name
Correct comments for `Base.prototype.option`

* Change `default` to `defaults`
* Remove `banner` as it's never used for `option`.
Merge pull request #519 from alrra/correct-comments

Correct comments for `Base.prototype.option`
Use SVG badge for Travis
Merge pull request #523 from zenorocha/patch-1

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First implementation
Fixes some API hard time with AST-query
Add inline documentation
Make the Gruntfile API with latest rewrite of AST-Query