Rationalize the hiding and showing of fields
Fix crash on importing loaned books with differing internal IDs but same
UUID
Header for location field + XML cleanup
Add search criteria to book list and cleanup book display and editing

- 'signed' books now display correctly
- notes & location have headings when editing
Final horror fix for Android 2.1 bug
5.0.0 Beta 3 relese changes
Merge branch 'master' of https://github.com/Grunthos/Book-Catalogue
Merge pull request #465 from Grunthos/master

5.0 Beta 3