Changed phpunit.xml to phpunit.xml.dist for portability and allowing for environment overrides. Enhanced the .gitignore for wider handling of diverse development environments.
Paired down the included gitignore.
Fixed gitignore to follow repository/project standards.
Merge pull request #12 from ndigitals/TN-ISSUE-11

Development Environment Flexibility and Continuous Integration Enhancements
Syntax highlighting in the readme