Updated all gems

When setting a new locale the gem I18n will require it to bevalid:
https://github.com/svenfuchs/i18n/commit/3b6e56e06fd70f6e4507996b017238505e66608c

Due to some changes on how Rails manipulate routes the contact search helper was
broken with the gem updates. Adding a new method on
app/helpers/contact_search_helper.rb fixed it.

Signed-off-by: Lucas Dutra Nunes <ldnunes@ossystems.com.br>
Updated Ruby to 2.1.0

Signed-off-by: Lucas Dutra Nunes <ldnunes@ossystems.com.br>