Changes
- Add ZIPARCHIVE::OVERWRITE mode for ::open(), creates a new
archive and write over an existing file
- locateName do not change anymore the state, it can now be used to test an entry
- fix possilbe crashes when two entries with the same name have been added
- Enhanced safemode support
- fix builds against php 6.0 (HEAD)
- fix compiler warning (Ilia, Tony)
- cleanup phpinfo() output (Ilia)