Fixing bootstrap to not redeclare slug

Fixing bootstrap to not redeclare slug since this function is deprecated. Fixes #90

Config/bootstrap.php

@@ -158,22 +158,22 @@ define('CHAR_LESS', '&lt;'); # <
 define('CHAR_GREATER', '&gt;'); # >
 define('CHAR_QUOTE', '&quot;'); # "
 define('CHAR_APOSTROPHE', '&#39'); # '
-define('CHAR_ARROWS', '&raquo;'); # »
-define('CHAR_ARROWS_R', '&#187;'); # »
-define('CHAR_ARROWS_L', '&#171;'); # «
-define('CHAR_AVERAGE', '&#216;'); # Ø
+define('CHAR_ARROWS', '&raquo;'); # »
+define('CHAR_ARROWS_R', '&#187;'); # »
+define('CHAR_ARROWS_L', '&#171;'); # «
+define('CHAR_AVERAGE', '&#216;'); # Ø
 define('CHAR_INFIN', '&infin;'); # 8
-define('CHAR_MILL', '&#137;'); # ‰ (per mille) / or &permil;
+define('CHAR_MILL', '&#137;'); # ‰ (per mille) / or &permil;
 define('CHAR_PLUSMN', '&plusmn;'); # 8
-define('CHAR_HELLIP', '&#8230;'); # … (horizontal ellipsis = three dot leader)
-define('CHAR_CIRCA', '&asymp;'); # ˜ (almost equal to)
+define('CHAR_HELLIP', '&#8230;'); # … (horizontal ellipsis = three dot leader)
+define('CHAR_CIRCA', '&asymp;'); # ˜ (almost equal to)
 define('CHAR_CHECKBOX_EMPTY', '&#9744;]'); #
 define('CHAR_CHECKBOX_MAKRED', '&#9745'); #
 define('CHAR_CHECKMARK', '&#10003;');
 define('CHAR_CHECKMARK_BOLD', '&#10004;');
 define('CHAR_BALLOT', '&#10007;');
 define('CHAR_BALLOT_BOLD', '&#10008;');
-define('CHAR_ABOUT', '&asymp;'); # … (horizontal ellipsis = three dot leader)
+define('CHAR_ABOUT', '&asymp;'); # … (horizontal ellipsis = three dot leader)
 
 /* not very often used */
 define('CHAR_RPIME', '&#8242;'); # ' (minutes)
@@ -189,31 +189,33 @@ define('CHAR_DOUBLE_RPIME', '&#8243;'); # ? (seconds)
  * @return string
  * @deprecated Use a lib class method instead
  */
-function slug($string, $separator = null, $low = true) {
-	$additionalSlugElements = array(
-		'/º|°/' => 0,
-		'/¹/' => 1,
-		'/²/' => 2,
-		'/³/' => 3,
-		// new utf8 char "capitel ß" still missing here! '/.../' => 'SS', (TODO in 2009)
-		'/@/' => 'at',
-		'/æ/' => 'ae',
-		'/©/' => 'C',
-		'/ç|¢/' => 'c',
-		'/Ð/' => 'D',
-		'/€/' => 'EUR',
-		'/™/' => 'TM',
-		// more missing?
-	);
-
-	if ($separator === null) {
-		$separator = defined('SEO_SEPARATOR') ? SEO_SEPARATOR : '-';
-	}
-	$res = Inflector::slug($string, $separator, $additionalSlugElements);
-	if ($low) {
-		$res = strtolower($res);
+if (!function_exists('slug')) {
+	function slug($string, $separator = null, $low = true) {
+		$additionalSlugElements = array(
+			'/º|°/' => 0,
+			'/¹/' => 1,
+			'/²/' => 2,
+			'/³/' => 3,
+			// new utf8 char "capitel ß" still missing here! '/.../' => 'SS', (TODO in 2009)
+			'/@/' => 'at',
+			'/æ/' => 'ae',
+			'/©/' => 'C',
+			'/ç|¢/' => 'c',
+			'/�/' => 'D',
+			'/€/' => 'EUR',
+			'/â„¢/' => 'TM',
+			// more missing?
+		);
+	
+		if ($separator === null) {
+			$separator = defined('SEO_SEPARATOR') ? SEO_SEPARATOR : '-';
+		}
+		$res = Inflector::slug($string, $separator, $additionalSlugElements);
+		if ($low) {
+			$res = strtolower($res);
+		}
+		return $res;
 	}
-	return $res;
 }
 
 /**