Updated composer update and install recipes to be more specific and added oauth and self-update recipes.
Removed actual oauth token from recipe. The token has also been deleted from Github to prevent unauthorized access.
Added rescue functionality - if the token is not set correctly, the oauth token will be set to null.
Consolidated git recipes to see if it makes a difference.
Updated recipe names.
Changed script names to help log file readers.
Renamed update-dependences to install-dependencies, since it calls composer install.
Merge pull request #27 from alleluu/develop-nb-composer

Updated Composer cookbook.