Fixed bug.  Didn't register map correctly.
Changed getDisplay to addDisplay (subtle difference: allows existing
displays to register)
Added layer summary to replace sending entire layer object for
information.
Renamed zindex field in summary object.
Changed to use LayerSummary.
Changed to use layer summary.
Switched to layer summary.
Changed map to use id instead of summary.
Fixed bugs caused by switch to layerId.
Send layer information with layer summary objects (maintain consistant
ids).
Close panels no longer in use.
Added namespaces to element ids.
Allows renaming of existing namespaces.
Will now refuse to add a layer with a duplicate id.
Now renames workspace when renaming a map.
Added client page.