Bug 12862: Staff client tweaks related to obsolete language="javascript"

Bug 12862: Staff client tweaks related to obsolete language="javascript"

As a result, this patch removed the deprecated tag from the
intranet templates.

And since there was just 1 other tiny error in the same template
file, the checked="checked" was removed from a text box.

TEST PLAN
---------
1) Install the HTML Validator 0.9.5.8 for FireFox.
2) Open Intranet to Home -> Tools -> News
3) View Page Source
   -- you'll notice the message about language="javascript" being
      one of the error messages.
4) Click Edit beside one of the news items.
5) View Page Source
   -- you'll notice the message about language="javascript" being
      one of the error messages.
6) Apply patch
7) Repeat steps 2 to 5 without "language="javascript" related
   error messages.
8) Run koha QA test tools.

Signed-off-by: Owen Leonard <oleonard@myacpl.org>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>