Format URLs

- Remove portal.jsp/.do? from main URL if given
- Add trailing slash if missing from either URL
Add workbench URL
Create bib lookup method

- Fill in Resource #lookup_bib
- Fix WorkbenchPage #link_in_results?
Add Resource #lookup_holdings

- #lookup_holdings searches on call number & location
- WorkbenchPage #add_line is now an action
- WorkbenchPage #delete_line is now an action
Add Resource #lookup_item

- #lookup_item uses Item Barcode to look up item
Rename Resource #open_holdings/item -> #edit_"

- Rename Resource #open_holdings to #edit_holdings
- Rename Resource #open_item to #edit_item
Merge branch 'feature/resource_lookup' into development