Integrated list managment with admin site

- Made favicon work across pages
- No longer needs root access to tee command, still needs root access for gravity.sh and whitelist.sh
- Added call to gravity.sh when you remove an item
- Moved header and footer into separate files
- Moved files from list into the main folder
- Got rid of extra dependencies from the old list setup
- Added home button to sidebar
- Renamed original whitelist to "Old Whitelist"
- Added buttons to sidebar for Whitelist and Blacklist

php/get.php

@@ -0,0 +1,15 @@
+<?php
+if(!isset($_GET['list']))
+    die();
+
+$type = $_GET['list'];
+$rawList = file_get_contents("/etc/pihole/${type}list.txt");
+$list = explode("\n", $rawList);
+
+// Get rid of empty lines
+for($i = sizeof($list)-1; $i >= 0; $i--) {
+    if($list[$i] == "")
+        unset($list[$i]);
+}
+
+echo json_encode(array_values($list));