Replace deprecased jQuery .live and .die methods

.live and .die methods are removed from jQuery 1.9.x .
Replaced:
.live -> .on
.die -> .off

SonataAdminBundle is valid with jQuery 1.9.x, SonataDoctrineORMAdminBundle not.
Merge pull request #183 from dkorsak/patch-1

Replace deprecased jQuery 1.9 .live and .die methods