ad 6.x-2.0-beta6

New features::

• #421026: add notification events for an advertisement being taken offline, and for an advertisement being updated
• #421038: allow weighting of non-channel advertisements
• #421054: enforce optional maximum filesize for image ads, enforce maximum size, and minimum/maximum height and width on remotely hosted images in addition to locally hosted images

Bug fixes:

• #376924: list ad_owner as ad_cache_file dependency
• #400734: validate cache element exists before using it
• #404888: properly display advertisements and increment impressions when using the raw method to display advertisements
• #419140: always be sure $permissions is an array
• #421008: make premier status configurable to anyone with 'configure premier status' permission
• #421046: optionally limit the number of channels that can be assigned to a single advertisement
• #422936: add missing extra fields from table definitions
• #425482: support older versions of PHP when building cache
• #426292: sanitize ad channel urls, trimming white space from start and end of lines to be sure they match as expected
• #426300: allow the deletion of channels and containers
• #431806: use valid XHTML when displaying advertisements
• for notifications, remove outdated notification references to _views, changing to the new _impressions syntax