Validation and other issues with patron notice template names

Overview: Originally reported through bug fest as an issue where after the user created a new template, they couldn't see the new template listed. She attempted a second time and the second time it failed validation saying that the template name already existed. See CIRC-981 as duplicate.

Steps to Reproduce:

1. Go to Settings > Circulation > Patron notice templates
2. Select "New"
3. Create a template named "test" (complete all required fields)
4. Look for new "test" template in list of templates
5. Select "New" again and create another template named "test"

Expected Results:
Upon creating any new template, it should appear in the list.

Actual Results:
The newly created template, named "test" did not appear in the list of templates.

Additional Information:

• Also note that case is not considered in validation of duplicate names but it should be. Created new bug for this.
• All template test cases were failed by original tester due to this bug. I left one remaining failed test case due to this bug.