CONTRIBUTING.md and .gitignore

.gitignore

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 .tmp/
 .librarian/
 
+# log directory
+log/
+

CONTRIBUTING.md

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+If you follow these contributing guidelines your patch
+will likely make it into a release a little quicker.
+
+
+## Contributing
+
+1. Fork the repo.
+
+2. Create your feature branch (`git checkout -b feature/my-new-feature`)
+
+3. Run the tests. We only take pull requests with passing tests, and
+   it's great to know that you have a clean slate
+
+4. Add a test for your change. Only refactoring and documentation
+   changes require no new tests. If you are adding functionality
+   or fixing a bug, please add a test.
+
+5. Make the test pass.
+
+6. Push to your fork and submit a pull request.
+
+
+## Dependencies
+
+All dependencies are listed in Puppetfile
+
+## Syntax and style
+
+There is integrated link task in Rakefile that depends on metadata-json-lint to lint metadata.json
+
+## Running the unit tests
+
+To run tests suits you need to have `bundler`. To install all necessary gems use `bundle install` in root folder of project.
+
+To see available test tasks use: `bundle exec rake -T`.  
+
+## Integration tests
+Integration tests are made with `beaker` and `vagrant`.