Added Rubyconf Brazil 2014

The dates are set as announced by @akitaonrails on his blog, http://www.akitaonrails.com/2013/10/07/rubyconf-brasil-2014-dates-are-set, but the main side still shows the info for the 2013 edition. I'll update it again when the CFP opens.
Fix RubyConf Brazil name

[closes #16]