Merge branch 'release/0.5.2.0' into stable

Gemfile.lock

config/locales/diaspora/br.yml

config/locales/diaspora/cs.yml

config/locales/diaspora/da.yml

config/locales/diaspora/de.yml

config/locales/diaspora/de_formal.yml

config/locales/diaspora/es-AR.yml

config/locales/diaspora/es.yml

config/locales/diaspora/fr.yml

config/locales/diaspora/hu.yml

config/locales/diaspora/hy.yml

config/locales/diaspora/ia.yml

config/locales/diaspora/lv.yml

config/locales/diaspora/nl.yml

config/locales/diaspora/pl.yml

config/locales/diaspora/ro.yml

config/locales/diaspora/ru.yml

config/locales/diaspora/sv.yml

config/locales/diaspora/te.yml

config/locales/diaspora/uk.yml