Bug 10409: Follow up - improving strings for easier translation

Bug 10409: Follow up - improving strings for easier translation

Fixing this line:
<legend>[% IF course_id %] Edit [% ELSE %] Create [% END %] course</legend>

As grammar works different in different languages, having single
strings like that in a predefined order makes having a nice translation
unnecessarily hard.

This will make it a little easier:
<legend>[% IF course_id %]Edit course[% ELSE %]Create course[% END %]</legend>

Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Galen Charlton <gmc@esilibrary.com>