Add support for output of var_dump when xdebug is enabled

 - Also handle displaying the arguments with labels in output
Adjust styles for argument display
Add complex demo file to illustrate a more complex example
Correct alignment of output of dumped args
Update tests bootstrap for consistent test runs
Update tests to handle xdebug version of int display
Simplify unit tests execution

Add setUp method to handle exposing private methods to be tested.
Merge pull request #10 from sumpygump/xdebug-support

Make output compatible when xdebug is installed