Grunt 0.4 support. Bump version to 0.2.0

- update dependencies
- fix grunt API usage
- move jshint config to .jshintrc file
- update README
Made it easier to read
Updated README
Dependency update
Removed dependency on fs module
Raising a fatal error and made a line more readable
Back to previous signature (breaking tests without any ability to catch the exception)
Fixing FS call
Merge pull request #1 from oncletom/alexeykuzmin-master
Merge pull request #9 from alexeykuzmin/master

Grunt 0.4 support