Build 2936

[aware_support]

When defining item rules or attribute styles you can now assign not just CSS styles but CSS classes as well!

"Last modified" date is supported for rules as well.

Bugs:
1. Bottom border width in attribute styles was not saved
2. More bug fixes in the Attribute Style dialog
3. Accordion layout wasn't displayed properly if used inside a tab.

Improvements:
1. Support for last modified date in rules:
- Last Modified property for a rule
- Search Last Modified command supports rules
- Rule Filter dialog has an option show Last Modified date column for a rule collection
2. Attribute styles and item display rules now support both styles and CSS classes