Add images to the README.md
Add the coveralls badge inthe README.md file
Add the npm badge to the README.md file
Add the code snippet to the README.md file.
Add the available validator list to the README.md file
Add an integer validator.
Add the credit card validator.
Add a date validator.
Add the alpha chars validator.
Add a url validator.
Merge pull request #18 from mateuszsokola/develop

Merge the 'develop' branch into 'master' and create a new release.