Updated locales

- "Event/s" was substituted by "Activit[y/ies]"
Merge branch 'develop' of github.com:guluc3m/gul-gultalks into develop
Reimplemented Wizard. Still need to fix Verifiers
Can finish wizard correctly (including speakers information). Need to add taggings
Tags are now added correctly in the Wizard
Moove footer to partial file.
Prevent saving an empty event
Added wizard sessions
Merge branch 'rewicked' into develop
Minor fix
Added rake cleanup:events task