only assign kcode if ruby version is < 1.9.0
only assign kcode if ruby version is < 1.9.0

chicisimo/sinatra-contrib,TimurTarasenko/sinatra-contrib,sferik/sinatra-contrib,gferguson-gd/sinatra-contrib,zBMNForks/sinatra-contrib,r7kamura/sinatra-contrib,mwpastore/sinatra-contrib,gferguson-gd/sinatra-contrib,mwpastore/sinatra-contrib,r7kamura/sinatra-contrib,sferik/sinatra-contrib,zBMNForks/sinatra-contrib,chicisimo/sinatra-contrib,TimurTarasenko/sinatra-contrib