Enable zend.multibyte tests. Tipcal configuration works, but most tests fail.
Merge branch 'PHP-5.4' into PHP-5.5

* PHP-5.4:
  Enable zend.multibyte tests. Tipcal configuration works, but most tests fail.
Fixed Bug #66412 readline_clear_history() with libedit causes segfault after #65714

Checking all libedit functions, this check is done in each functions (add_history,
read_history, write_history, ...) but is missing in clear_history.

Test coverage: readline_clear_history_001.phpt
Skip readline tests which fail with libedit
Add specific libedit test (output slightly differs)
release 7.0.3
dos2unix
Skip those test which fails on ARM architecture

Add minimal tests for all arch.
Updating NEWS with PDO change