Merge pull request #48 from elitenomad/marcus

Marcus
only current_user can confirm
Merge pull request #49 from elitenomad/federico

only current_user can confirm
Fixed the floating points
Merge pull request #50 from elitenomad/Pranava_Users

Fixed the floating points
Fixed the portions_hash to balance_hash
Merge pull request #51 from elitenomad/Pranava_Users

Fixed the portions_hash to balance_hash
fixed conflict on groups show: