The "phpcs-validate.sh" now can create "*.fixed" files when report is set to "diff"
Add fixing of "Classes.ClassCreateInstance" sniff

- fixing 100% of errors detected in the sniff
- add support for PHP 5.4 class instantiation syntax
Add fixing of "Classes.ClassDeclaration" sniff

- removed redundant code for checking that class closing brace is on it's own line
- also test the case, when there are too many empty lines after class declaration