Bug 8909: MARC21 240$a (Uniform title) is not a URL

Bug 8909: MARC21 240$a (Uniform title) is not a URL

Patch removes the 'isUrl' attribute from all 240$a fields in the various
frameworks. The change removes the broken link from the staff detail
MARC tab view.

Changes are a little easier to spot with: git diff --color-words HEAD^

To test:
- Load some or all of the frameworks
- Verify that 240$a is no longer marked as being an URL

Signed-off-by: Nick Clemens <nick@quecheelibrary.org>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>