o fix PHP E_ALL notices
 - ad_weight_probability.module
    o fix PHP E_ALL notices

    o only add/update probability information when working with ads
    o don't rebuild cache twice, it will be rebuilt on save by the ad module

    o bug #386816: new ads default to a weight of 1

    o fix PHP E_ALL notices
 - ad_cache_file.module
    o fix PHP E_ALL notices

    o bug #374044: when editing group, don't display "create group" button

create branch 'DRUPAL-6--1'.

Sprout from DRUPAL-5 2008-08-11 18:09:24 UTC jeremy ' - ad_html.module'
Cherrypick from master 2006-12-11 23:52:57 UTC jeremy 'New advertising module and api.  Currently for Drupal 4.7, in alpha':
    MAINTAINER.txt
    image/MAINTAINER.txt
    text/MAINTAINER.txt
Delete:
    weight/percent/ad_weight_percent.info

    o bug #248663: remove trailing ?>
 - ad_weight.info
    o bug #248663: add missing $Id$
 - ad_image.module
    o bug #248663: remove packaging info accidently included in info
      file
----------------------------------------------------------------------

 - ad_cache_file.module
 - ad_cache_memcache.module
 - ad_external.module
 - ad_image.module
 - ad_notify.module
 - ad_report.module
 - ad_text.module
 - ad_weight_percent.module
    o bug #183085: remove closing ?>

    o renamed to serve.php
 - adserve.inc
    o add new 'iframe' method, along with 'raw' and 'javascript'
    o add initial support for external weighting modules
 - ad.module
    o look for 'serve.php', not 'adserve.php'
    o add new IFrame display method
 - ad_cache_file
    o add new "ad_build_cache" hook, to be used by external weighting modules
 - ad_weight_percent.inc
    o initial implementation of percentage based weighting module

 - ad_weight_percent.info
 - ad_weight_percent.install
 - ad_weight_percent.module
    o implemented GUI and schema for weighting how often ads within each ad
      group are displayed as a percentage of 100%.  actual logic to display
      ads per these settings is not yet implemented.