version/1.0.4 :: WIP :: Migrate to Nokogiri, Hashie & Crack Gems, as opposed to manually setting attributes, as it should make the gem more resilient to changes in Edgar. Slim down entity, remove extraneous code.  Update Filing with a similar approach. Add in vcr and update specs.
version/1.0.4 :: Add rubucop gem. rubucop'ed entity and filing class.
version/1.0.4 :: WIP on transaction class.
feature/nokogiri_hashie_crack  :: Rebase version/temp off develop.
develop: Switch from Hpricot to Nokogiri. Use active_support/core_ext/hash/conversions to easily parse Nokogiri xml.