Merge pull request pkp#409 from mtub/ojs-dev-2_4

updated locales for OJS 2.4.6

pkp#291 Fix test race conditions

*9058* Remove Zend framework

Merge pull request pkp#178 from jmacgreg/ojs-stable-2_4

*8901* translation updates to lib-pkp

*8771* Suppress out-of-bound array index warning

Copyright notice tweaks

*8737* Return number of affected rows

*8563* Added missing value

*8503* General localization updates

Copyright updates