Merge pull request #508 from mmcguinn/scratch

-Added base64 encoding to validation links.
Finished Sanitizer for Projects, now to add it everywhere
Added sanitization to all aplicable modles
Titles now strip all tags, and id's and classes are not allowed from the user
no validation
Merge pull request #510 from hmcq6/HM_Sanitize_All

Hm sanitize all
-Fixed detection of null values in numeric fields.
Merge pull request #511 from mmcguinn/mm509

-Fixed detection of null values in numeric fields.
-Fixed bad default dataset name.