Editing aggregation child pages working and Advanced Search fix

- Advanced search
  - Corrected issue introduced when adding the date range searching functionality
- Web language enum
  - Corrected the spelling of several languages
- mySobek Home Viewer
  -  Cleaned HTML to HTML5, move to CSS3, reduce javascript, etc..
- Child page editing
  - Added ability for aggregation admins to edit the HTML in child static html pages directly
Merge branch 'master' of github.com:MarkVSullivan/SobekCM-Web-Application