Fixed some problems with attr_accessible usage.
Fixed some problems with attr_accessible usage.

refinery/refinerycms-news,wuboy0307/refinerycms-news,wuboy0307/refinerycms-news,ipmobiletech/refinerycms-news,krisquigley/refinerycms-news,ipmobiletech/refinerycms-news,refinery/refinerycms-news,krisquigley/refinerycms-news