Aggregation and paged results refactor, overall optimizations, customizations

- Completely refactored the main Aggregation_HtmlSubWriter and Paged_Results_HtmlSubWriter
   - Cleaned HTML to HTML5, move to CSS3, reduce javascript, etc..
   - All buttons and tabs changed from images to CSS manufactured
   - Restored the search results buttons at the bottom of the results screen
- Speed user-based optimizations
   - Merged eight previously separate javascript into sobekcm_full.js and minified (with Microsoft Ajax Minifier)
   - Switched to newer, custom jquery ui, again minimized when in production mode
   - Merged several of the smaller, recently cleaned CSS's into SobekCM.css
- Aggregation single admin modifications
   - Only portal and system admins can assign thematic headings
   - Corrected order that search types are added to the aggregation (advanced is last home page option)
- Customizations
   - Can set custom setting to suppress addition of publication year to title in item view (GCSC)
   - Added ability to set two instance wide menu options to appear in the far left (GCSC)
- Menu System
   - Switched css to be pixel based, instead of 'em' based for constancy across browsers
   - Added hack into header style with not IE
   - Corrected some links in the main header which were wonky due to not setting mode correctly