Bug 11944: Some refresh don't indicate the charset to use

Bug 11944: Some refresh don't indicate the charset to use

This patch replaces occurrences of META HTTP-EQUIV=Refresh with a
redirection.

Note:
 The list of modified files has been got with the following grep:
  git grep Content-Type | grep -v -i utf | grep Refresh | grep -v translator | grep -v \.js

Test plan:
1) admin/auth_tag_structure.pl
- Go on an authority MARC framework for an authority type
(admin/auth_tag_structure.pl?authtypecode=CO for instance)
- Click on the "Add a new tag" button
- Fill fields
- Save
- You should be redirected on the auth_tag_structure.pl page
- Try to modify an existing tag
- The redirection should be done

2) admin/auth_subfields_structure.pl
- From the previous page, click on a "subfields" link
- Edit/Add a new subfields
- Save
- You should be redirected to the subfield list
- Delete a subfield
- You should be redirected to the subfield list

3) admin/authorised_values.pl
- Add/Edit an authorised value
- Save
- You should be redirected to the authorised value list (with the
  right category selected)

4) admin/categorie.pl
- Add/Edit a patron category
- Save
- You should be redirected to the category list
- Delete a patron category
- You should be redirected to the category list

5) admin/koha2marclinks.pl
- Go on the Koha to MARC mapping configuration page
- Edit a field
- Map a field and click on "OK"
- You should be redirected to the list

6) admin/marc_subfields_structure.pl
- Go on the MARC frameworks page
- Click on "MARC structure" for one on the list
- Click on "Subfields" for one on the list
- Add/Edit a subfield
- Save
- You should be redirected to the subfield list

7) admin/systempreferences.pl
- Go on the system preferences admin page
- Click on the "Local use" tab
- Add/Edit a pref
- Save
- You shold be redirected to the Local use preference list

8) serials/subscription-detail.pl
- Go on a subscription detail page
- Delete the subscription (using Edit > Delete subscription)
- You should be redirected on the serials home page

Signed-off-by: Paola Rossi <paola.rossi@cineca.it>
Signed-off-by: Bernardo Gonzalez Kriegel <bgkriegel@gmail.com>
Signed-off-by: Dobrica Pavlinusic <dpavlin@rot13.org>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>