rotcell problem
http://nabetani.sakura.ne.jp/yokohamarb/2014.10.rotcell/
pair programming session at yokohamarb
http://yokohamarb.doorkeeper.jp/events/14228
How to run
ruby rotcell.rb
http://nabetani.sakura.ne.jp/yokohamarb/2014.10.rotcell/
http://yokohamarb.doorkeeper.jp/events/14228
ruby rotcell.rb