[#61566024] multiple terms in borrow search

Squashed commit of the following:

commit 5e0a3979ab22bd4e25f0fe95f40001cd899a5f7a
Author: Franco Sellitto <franco.sellitto@zhdk.ch>
Date:   Mon Aug 11 12:20:23 2014 +0200

    [FIX CI]

commit 2e24b32618740917b15eeb3c3eccda80a957e9e9
Merge: 0b26c12 f145b8a
Author: Franco Sellitto <franco.sellitto@zhdk.ch>
Date:   Fri Aug 8 14:47:44 2014 +0200

    Merge branch 'master' into fs_borrow_search

commit 0b26c12f2d6cde96a680304995e328ead3289de5
Author: Franco Sellitto <franco.sellitto@zhdk.ch>
Date:   Fri Aug 8 10:23:10 2014 +0200

    fixing borrow search for multiple space separated terms