bump up the version which supports rails 4
bump up the version which supports rails 4

plombix/rapidfire,plombix/rapidfire,chukitow/rapidfire,brunoocasali/rapidfire,abhiramm/form_builder_pca_2,abhiramm/form_builder_pca_v4,pollingj/rapidfire,chukitow/rapidfire,abhiramm/form_builder_pca_2,romainbx/rapidfire,brunoocasali/rapidfire,pollingj/rapidfire,abhiramm/form_builder_pca2,abhiramm/form_builder_pca_2,jeffolen4/rapidfire,jeffolen4/rapidfire,jeffolen4/rapidfire,chukitow/rapidfire,romainbx/rapidfire,abhiramm/form_builder_pca,plombix/rapidfire,abhiramm/form_builder_pca2,code-mancers/rapidfire,abhiramm/form_builder_pca,abhiramm/form_builder_pca_v4,brunoocasali/rapidfire,pollingj/rapidfire,code-mancers/rapidfire,code-mancers/rapidfire