- Support trim/rtrim/ltrim
- Dosen't depend on exposing of zif_* symbols any more
- Fixed a potential crash(PHP 5.2)
- Fixed bug that concat_assign lost tainted info in php 5.4(if the var_ptr is tainted while value is not)
- Fix memory leak in assign_concat
- Fix tests faild of sprintf/trim etc args signature
- Fixed compiler warnings