Added logic to index.php to auto-truncate long HeaderText values
Added headerTextTruncLen to table `config` (default: 20 characters)
Added HeaderTextTruncLen to personalize.php
Created update_header_text_trunclen.php

Fixed bug #82 ... again.

Because of the new value on index.php, you'll need to either manually create this value in `config` table, or drop and reload schema.

Bulk whitespace edits. Who keeps using spaces instead of tabs?!