Major changes in OrderedLayout

Major changes in OrderedLayout

These changes include:
- Redesigned IOrderedLayout DOM-structure
- Changes OrderedLayout Horizontal mode constructor defaults to 100% wide (this has been practical default since Millstone 3.0 as undefined width have been broken in horizontal mode)
- Ensured appearance of error exclamation marks in captions without required status, icon or caption text
- Closes #1911 : Optimize IOrderedLayout dom-structure by removing intermediate margin-div
- Closes #1915 : IOrderedLayout caculates right margin incorrectly in horizontal mode when width is not set
- Closes #1921 : IOrderedLayout needs cross-browser DOM structures
- Probably introduces many new regressions

All-in-all OrderedLayout is still work in progress and should not yet be included in 5.2.x releases

svn changeset:5079/svn branch:trunk