allow phpcs search path patterns to be overridden in config
update documentation for phpcs dir configuration
Add additional Features file patterns to exclude
Split out defaults for use across multiple tasks
Updating grunt-drush dependency to allow removing the deprecated grunt-lib-contrib plugin.
Merge pull request #36 from mdeltito/phpcs-dir-config

Allow phpcs search path patterns to be overridden in config
Add ESLint support with grunt-eslint