Alternative gem dependency for JRuby: json-jruby rather than json about couch_potato

[langalex]

sorry neither do i. i guess this will have to wait until someone picks this up.

[mjtko]

Ok, I'll endeavour to get my head around it and supply an appropriate push request!

Just didn't want to fork etc if it was a simple job for you! :-)

[mjtko]

I made the assumption that this would be dealt with in a sensible fashion by rubygems, but it turns out that platform specific dependency management is not yet a feature. I guess the only way of supporting this sensibly is to roll a platform specific couch_potato gem for the '-universal-java' platform but this isn't something I think I'll get into.

For now, I'll stick with the download and modify Rakefile approach. When rubygems catches up one day I'll revisit this but will close for now.