decided to use stable phpcs and composer lock
adjust snout binary for phpcs 1.5
recommend binary usage without standard name to avoid conflicts
directly use phpcs classes for integration tests
propose namespace for abstracted logic
add properties for forbidden names sniffs
abstract properties and shared logic for PHP group sniffs
merge properties to class, use helper, simplify structures
apply known diffs from php 5.5.16 changelog
fix two sniffs
add more unit tests