HCSVLAB-564: __REDO__ add the handle ( <collection>:<identifier> ) to an Item
no-ticket: __REDO__ Add some waiting time to Item list tests.
HCSVLAB-565: __REDO__ Remove breaking redundant code
HCSVLAB:565: __REDO__ More small fixes to ingest
No-Ticket: __REDO__ Modified error reporting log text on ingest.
HCSVLAB-599: __REDO__ Clear down Fedora_Worker's cache for documents. Also added initial version of a data checker as a rake task.
No-ticket: __REDO__ Add error log when an exception is raised in the catalog controller. Upgrade Active-Fedora version from 6.1.1 to 6.4.2.