Added ETD elements, updated html on new item template, fixes

- Added new ETD template elements and embargo date (not yet complete)
- Updated all the HTML to HTML5, CSS, etc.. for New_Group...MySobekViewer
- Fixes
   - Removed onfocus and onblur on Preferences_MySobekViewer (more to be done here)
   - Corrected two issues related with last work completed
      - Upload with manage files failed
      - Set to NOT validate request on new SobekCM.aspx (failed for '<' in elements)
Merge branch 'master' of github.com:MarkVSullivan/SobekCM-Web-Application

Conflicts:
	SobekCM/SobekCM.aspx
	SobekCM_Library/MySobekViewer/Edit_Item_Metadata_MySobekViewer.cs
	SobekCM_Library/SobekCM_Library.csproj