PSR code cleanup:
- [x] Private and protected functions and variables SHOULD NOT contain a leading single underscore.
- [x] Opening braces MUST go on the next line for functions and methods. Also removed spaces after last function and method calls.
- [x] Remove leading whitespace after class opening.
- [x] Clean up comments.
Merge pull request #13 from chrisvogt/psr_cleanup

PSR code cleanup