Update ro.coffee

Check line 234
Also need alternative for the word "ladder" in this context, there is translation that makes sense(will try to see how other games translate it and come back)
Update ro.coffee
Added i18n for multiplayer launch modal.
Merge branch 'master' of https://github.com/codecombat/codecombat
Merged some merging in the locales.
Propagated new multiplayer_launch i18n.