add settings ctrl and routes
settings models abstraction + starting form
ass settings link on toolbar and tooltip
change password filds
add mail notification setting
settings form validation
add mail_notifications setting + save settings form
remove password handling from settings and delegates to regular email link method
i18n settings
fix toolbar specs + settings specs
more specs
Merge pull request #79 from it3s/user-settings

User settings
move avatar upload to own action + reload image when uploaded
flash message when upload is sucessfull
add picture uploader and model
initial pictures uploader + changes to uploader to be more extensible
add uploaded images to gallery
change picture_upload to be a embeded concern
fix picture model + add polymorphic relation
save pictures associated to objects