Fix detection of changed entities when custom attribute in json file
Fix detection of changed entities when custom attribute in json file

Theses entities are always detected as changed when they're not

Fixes #367

PierreBesson/generator-jhipster,cbornet/generator-jhipster,ruddell/generator-jhipster,vivekmore/generator-jhipster,pascalgrimaud/generator-jhipster,atomfrede/generator-jhipster,mraible/generator-jhipster,pascalgrimaud/generator-jhipster,ctamisier/generator-jhipster,pascalgrimaud/generator-jhipster,atomfrede/generator-jhipster,mraible/generator-jhipster,jhipster/generator-jhipster,mraible/generator-jhipster,mraible/generator-jhipster,PierreBesson/generator-jhipster,ruddell/generator-jhipster,vivekmore/generator-jhipster,gmarziou/generator-jhipster,ruddell/generator-jhipster,cbornet/generator-jhipster,vivekmore/generator-jhipster,liseri/generator-jhipster,vivekmore/generator-jhipster,cbornet/generator-jhipster,dynamicguy/generator-jhipster,jhipster/generator-jhipster,dynamicguy/generator-jhipster,jhipster/generator-jhipster,gmarziou/generator-jhipster,gmarziou/generator-jhipster,dynamicguy/generator-jhipster,liseri/generator-jhipster,gmarziou/generator-jhipster,jhipster/generator-jhipster,ctamisier/generator-jhipster,PierreBesson/generator-jhipster,atomfrede/generator-jhipster,PierreBesson/generator-jhipster,gmarziou/generator-jhipster,jhipster/generator-jhipster,dynamicguy/generator-jhipster,wmarques/generator-jhipster,wmarques/generator-jhipster,wmarques/generator-jhipster,cbornet/generator-jhipster,wmarques/generator-jhipster,ctamisier/generator-jhipster,ctamisier/generator-jhipster,wmarques/generator-jhipster,ctamisier/generator-jhipster,liseri/generator-jhipster,vivekmore/generator-jhipster,atomfrede/generator-jhipster,PierreBesson/generator-jhipster,liseri/generator-jhipster,atomfrede/generator-jhipster,mraible/generator-jhipster,liseri/generator-jhipster,pascalgrimaud/generator-jhipster,cbornet/generator-jhipster,ruddell/generator-jhipster,ruddell/generator-jhipster,pascalgrimaud/generator-jhipster