ADD: default redirection to the social network list
ADD: breadcrumb and improve general design
FIX: don't store new actor not created when dragging
FIX: improve general styling
FIX: update no current actor message
ADD: deletion of social networks
ADD: new social network button
ADD: form for creating new social networks
ADD: log transitions in ember
FIX: social network list styling
FIX: refactor cancel button in new form
ADD: edit form for social networks
FIX: submitting the form when pressin enter in new SN form
FIX: remove underline style of edit link in SN list
Merge branch 'social_networks_operations'