Added post install message, updated rdoc task
Added post install message, updated rdoc task

JoeWoo/sciruby,JoeWoo/sciruby,SciRuby/sciruby,SciRuby/sciruby,JoeWoo/sciruby,SciRuby/sciruby,SciRuby/legacy-sciruby-ide,SciRuby/legacy-sciruby-ide