talk 6.x-1.6

This is a bugfix and new feature release.

Changes since DRUPAL-6--1-5:

• Various updates/bugfixes.
• #307747 - Update README.txt
• #283142 by mfb: links should have the proper css class.
• #291154 by christefano, cwgordon7: talk tab should only be shown when the node has comments.
• #291154 by cwgordon7: "add new comment" link was not displayed with talk module enabled.
• #508640 by greggles: coding standards cleanup.
• #509448 by greggles: if a user cannot post comments, don't present an "Add new coment" link.
• feature #389172 by Owen Barton, greggles: Token integration for comment URL token
• feature #308311 by cwgordon7: Setting checkbox should be under 'Comment settings'
• bug #517988 by Todd Nienkerk: Three little bugs, inside this module (singing sweet songs...).
• feature #506658 by greggles: Customizable titles everywhere using tokens
• #522502 by greggles: function should be named template_preprocess_talkpage(), not talk_preprocess_talkpage().
• feature #530292 by sharda_ram, greggles: if there are no comments optionally show the talk page with some add a comment text
• Some minor changes to the settings form: removed question mark, added a description.