Added multiple Date format support
Added multiple Date format support

changes in cleaning web service for many date format.

usc-isi-i2/Web-Karma,sylvanmist/Web-Karma,sylvanmist/Web-Karma,sylvanmist/Web-Karma,rpiotti/Web-Karma,rpiotti/Web-Karma,usc-isi-i2/Web-Karma,rpiotti/Web-Karma,sylvanmist/Web-Karma,usc-isi-i2/Web-Karma,usc-isi-i2/Web-Karma,rpiotti/Web-Karma,usc-isi-i2/Web-Karma,sylvanmist/Web-Karma,rpiotti/Web-Karma