#88 Final fix optional parameters and added tests for it
#88 Fix madatory for optional parameter and added tests for it
Added PregMatchAllOptimizer.

Signed-off-by: Rack Lin <racklin@gmail.com>
#88 Clear not needed PHP_EQL and create new tests for optional parameter with default null value
Added PregMatchAllOptimizer. And PregMatchOptimizer with flags and offset parameters, fallback to PHP userland preg_match function.

Signed-off-by: Rack Lin <racklin@gmail.com>
Added more tests for preg_match .

Signed-off-by: Rack Lin <racklin@gmail.com>
Merge pull request #91 from zaets28rus/88_issue_fix

#88 Final fix optional parameters and added tests for it
Merge pull request #93 from racklin/enhancement/pregmatchall

Added PregMatchAllOptimizer and PregMatchOptimizer supports fallback to PHP userland function.
Fix load of preg_match optimizer in preg_match_all
Wrong precedence for 'empty' operator
Fixing missing ZEPHIR_IS_NULL macro
Merge branch 'original/master'