Update Gemfile, specially spreadsheet -> 0.9.6
update spec/downloader to silence rspec warnings
Silence rspec warning in spec/compressor.rb
oddb2xml-1.6.1.gem released
Read article with no pharmacode from BAG.xml Preparation.xml
Merge branch 'master' of https://github.com/ngiger/oddb2xml
oddb2xml-1.6.2.gem released