fix #287
enhancement #290

add personal information of a congressman in twitter summary card
first implementation of citizen blog
added missing locales
added locales for user subscriptions
added feature to unsubscribe in a bulk; closes #238
added new glossary structure with model
added initial support to glossary tooltip, currently broken
javascript search&replace from glossarie
minor changes in the studies's showcase
enhanced header in studies's showcase
Merge pull request #297 from ciudadanointeligente/hhh

Merge 'hhh' branch into 'master'
Merge pull request #298 from ciudadanointeligente/master

Merge 'master' branch into 'master-cl'
Merge pull request #299 from ciudadanointeligente/master-cl

Merge 'master-cl' branch into 'production'