Add PHPUnit tests for API services
Add DTOs and refactoring configuration API
Refactoring API services, switching to node classes
Refactoring API configuration initialization
Refactoring API configuration process
Refactoring for using with configuration API
Refactoring system configuration in Server class
Refactoring datasource configuration + unit tests
Refactoring PHPUnit tests
Refactoring PHPUnit tests and configuration process
Merge pull request #2 from techdivision/master

Merging master in my own branch
Add PHPUnit tests for API nodes + services
Refactoring PHPUnit tests
Remove JSON files for API PHPUnit tests
Merge pull request #24 from wagnert/master

Merging refactored configuration API back into master