Zend_File_Transfer: - fixed unittests, added new tests to increase coverage, some internal changes to allow new validators; Merges CS-10865 from the trunk; also closes [ZF-3918] for release-1.6 branch.
Zend_File_Transfer:
- fixed unittests, added new tests to increase coverage, some internal changes to allow new validators; Merges CS-10865 from the trunk; also closes [ZF-3918] for release-1.6 branch.

git-svn-id: abaeb2b3ba5a94ed391a9405ad7d63d0414021c9@10872 44c647ce-9c0f-0410-b52a-842ac1e357ba

sandsmedia/zf,sandsmedia/zf,grzana12/ZendFramework,sandsmedia/zf,grzana12/ZendFramework,grzana12/ZendFramework,grzana12/ZendFramework