Address issue of journal properties keyed by name

Also lots of JavaDoc comments
Add JSON object for test organization
Fix manuscript unique index

Add organization_id to composite key
Include XML extension when writing XML files
Add manuscript-revised.json for testing revisions with PUT
Add status constants to Manuscript
Basic structure for handling review status changes

Need to expose accept/reject functionality in ApproveRejectReviewItem
to proceed
Refactor ApproveRejectReviewItem to expose methods

Previously was CLI-only.
Added reviewItem methods for manuscript ID or workflow ID
Implement handling of review accept/reject
TODO for ApproveRejectReview
Forgot to call reviewItem for manuscript number
Configure DSpace Kernel in review status handler
Load dspace configFile before calling super.init()

Prevents singletons from being initialized before DSpace config is
available
Use ApproveRejectReviewItemExceptions
Change initial manuscript to "submitted"