Revert "Don't update index unless tracked fields are changed"
Revert "Don't update index unless tracked fields are changed"

This reverts commit aa281d5463851bfd5b37c7c0e4d88f1bdd8ac60e.

coletivoEITA/acts_as_solr_reloaded,dcrec1/acts_as_solr_reloaded,tcjuan/acts_as_solr_reloaded,dcrec1/acts_as_solr_reloaded,coletivoEITA/acts_as_solr_reloaded