Configure path for 1.9 mode when jruby.home == /tmp
Configure path for 1.9 mode when jruby.home == /tmp

Fixes #64.

jruby/jruby-rack,jruby/jruby-rack,janrain/jruby-rack,jhstatewide/jruby-rack,atambo/jruby-rack,janrain/jruby-rack,jhstatewide/jruby-rack,atambo/jruby-rack,jhstatewide/jruby-rack,jruby/jruby-rack,jruby/jruby-rack,atambo/jruby-rack,atambo/jruby-rack,jruby/jruby-rack,jhstatewide/jruby-rack,janrain/jruby-rack,janrain/jruby-rack,jruby/jruby-rack