#5 RubyMine support

Please, could it be made to work with RubyMine too?

I've tried to modify just the plugin.yml file adding a "depends" tag, the way it is said in http://confluence.jetbrains.com/display/IDEADEV/Plugin+Compatibility+with+IntelliJ+Platform+Products, and it now loads in RubyMine. However, it crashes later because it uses clases not available in RubyMine, like com.intellij.openapi.actionSystem.DataKeys