Fix 0002969: Bug not found error when deleting a bugnote.

Did the fix below to bug note action pages.

Fix 0002968: Add query counts to action pages. If show query counts is enabled,
the number of queries (and the queries if enabled) is shown for the duration of a
second in an operation successful page.

M bugnote_add.php
M bugnote_set_view_state.php
M bugnote_update.php

• Make use of print_success_and_redirect()

M bugnote_delete.php

• Fix for 2969
• Make use of print_success_and_redirect()

git-svn-id: http://mantisbt.svn.sourceforge.net/svnroot/mantisbt/trunk@1966 <a class="text" href="/?p=mantisbt.git;a=object;h=f5dc347c">f5dc347c</a>-c33d-0410-90a0-b07cc1902cb9