added Kint to project for help debugging
added composer.lock to .gitignore
added simple script for testing
refactored MPD classes
updated README
refactored classes
more refactoring
convert MPD class to use static method calls
added custom Exceptions for error conditions
converted test code to use static method calls
Merge branch 'feature/make-classes-static' into develop
Merge branch 'release/0.0.2-alpha'