Preview sweepstakes
add validations column
Merge remote-tracking branch 'origin/mockup' into moc1.1_sweepstake
decode
Edit preview
form fields validation column
Merge remote-tracking branch 'origin/moc1.1_sweepstake' into moc1.3_sweepstakes

Conflicts:
	application/controllers/sweepstake_admin.php
	public/js/ckeditor/config.js
Merge remote-tracking branch 'origin/moc1.3_sweepstakes' into mockup