dspace.cfg: Fix XPDF thumbnailing

Must have missed this one in the migration from 3.x -> 4.x.

Signed-off-by: Alan Orth <a.orth@cgiar.org>
dspace.cfg: Re-enable item strength display

Signed-off-by: Alan Orth <a.orth@cgiar.org>
Fix DS-2068 Tell Travis CI to retry a failed build
DS-2193 Correct browsing for exact metadata
DS-2229 Log user agent if no location can be determined (ie always)
DS-2027 Update bitstream-ordering.js

https://jira.duraspace.org/browse/DS-2027

There is a bad JQuery selector in the following code. This causes a submit to take place each time an up or down arrow is clicked. It is difficult to see the error in the javascript console because the submit takes place immediately.

Due to the page refresh delay, this is confusing to users when a large number of bitstreams are present.

Note that "$^=" is not a valid selector.

http://api.jquery.com/category/selectors/