Simplified MySobek writer and some MySobek viewers

- Simplified MySobek_HtmlSubwriter
   - Now all viewers get chance to write controls and html to the stream(no longer based on poopup flag)
   - Now also writes the logon menu bar
   - Banner and menus are ALWAYS written directly to stream now
   - Stopped writing the headline boxed text (now each viewer decides that)
- All editing screens now wider
- Removed the old tab code from completely, all new tabs in MySobek views (everywhere?)
- Logon_MySobekViewer now writes to stream, and uses no controls
- Saved_Searches_MySobekViewer now writes to stream, and uses no controls
- Edit_Item_Metadata_MySobekViewer
   - Now writes to stream and uses no controls
   - Switched tabs and buttons to new CSS driven tabs/buttons
   - Corrected issue where requesting a new element was a bit broken and acted erratically for form-based elements
   - Restored previews and made METS preview correct (was showing test item)
   - Added label tags to the preview type radio button text
- Minor tweaks to recent work on behaviors/add volume/etc.. screens