[Dev] Detail view moved to right of summary

[Bryan Stearns]

FYI...
 
One of my 0.5 tasks is to move the detail view to the right of the summary;
I've just checked in this change.  
 
To make better use of horizontal space, I change the summary views' column
widths, and reduced the font size in the detail view headers; things were
still pretty cramped, so I also made the main window default size a bit
larger (1024 wide instead of 800).
 
There are still other problems with the horizontal layout - in particular,
the mini calendar below the sidebar takes up too much room (especially on
the PC), but we're planning on replacing it anyway. We'll improve use of
space in the detail view header soon, when we get edit-in-place attribute
editors going. I expect more and other improvements will follow as well.
 
...Bryan