In-Portal

1. customized block redesign to match platform block layout

2. new method for setting/restoring fullscreen mode in admin

3. SetPopupSize tag added for "regional", "stylesheets" section templates

4. new tab design for "regional" section templates

5. Session class: missing attribute CachedSID declared, fixed duplicate session (with same sid) create attempt on session expiration resulting sql error

6. help icon removed from "blue_bar" block