Trnaslate the RubyConf Taiwain 2014 news (fr).
Translate the eurucamp news (fr)
Fix some misspellings on RubyConf Taiwan news (fr).

Thanks to @lucaspinto.
Fix some misspellings on eurucamp news (fr).

Thanks to @lucaspinto.
Merge pull request #701 from GRoguelon/conf_fr_translations

Translate the eurucamp and RubyConf Taiwan news (fr)