Fix accepting ill-formed UTF-8 characters

Conflicts:
	ext/phar/phar_path_check.c
Merge branch 'PHP-5.4' into PHP-5.5

* PHP-5.4:
  Fix accepting ill-formed UTF-8 characters

Conflicts:
	ext/phar/phar_path_check.c
Merge branch 'PHP-5.5' into PHP-5.6

* PHP-5.5:
  Fix accepting ill-formed UTF-8 characters