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** Add to wp-config.php file **

<?php
# Maximum 5 revisions #
define('WP_POST_REVISIONS', 5);
# Disable revisions #
define('WP_POST_REVISIONS', false);
?>

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//Create widget areas

<?php
// In functions.php
register_sidebar(array(
	'name' => 'Sidebar',
 	'id' => 'sidebar',
 	'before_widget' => '<li>',
 	'after_widget' => '</li>',
 	'before_title' => '<h3>',

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<?php
  include_once(ABSPATH.WPINC.'/rss.php');
  $googleplus = fetch_feed("http://plusfeed.appspot.com/123456789..."); // Replace 123456789... by your own ID
  echo '<a href="';
  echo $googleplus->items[0]['link']; echo '">';
  echo $googleplus->items[0]['summary'];
  echo '';
?>

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//Custom admin logo - 30px wide, 31px high transparent gif. Header background color: #464646
add_action('admin_head', 'my_custom_logo');

function my_custom_logo() {
   echo '
      <style type="text/css">
         #header-logo { background-image: url('.get_bloginfo('template_directory').'/images/custom-logo.gif) !important; }
      </style>
   ';
}

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<?php
add_theme_support( 'post-thumbnails' );

// This adds support for pages only:
add_theme_support( 'post-thumbnails', array( 'page' ) );

// And this adds support for posts only:
add_theme_support( 'post-thumbnails', array( 'post' ) );

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<?php
/*
Template Name: Name of your Template
*/
?>

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<?php add_filter('widget_text', 'do_shortcode') ?>

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<?php include_once(ABSPATH.WPINC.'/rss.php');
wp_rss('http://wpforums.com/external.php?type=RSS2', 5); ?>

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add_filter('wp_nav_menu_items','add_search_box', 10, 2);
function add_search_box($items, $args) {
ob_start();
get_search_form();
$searchform = ob_get_contents();
ob_end_clean();
$items .= '<li>' . $searchform . '</li>';

return $items;
}

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<?php
function remove_footer_admin () {
  echo 'My footer text. Thank you <a href="http://wordpress.org">Wordpress</a> for giving me this filter.';
}
add_filter('admin_footer_text', 'remove_footer_admin');
?>