use symfonymailer instead of swiftmailer

See merge request !17

fixes after usuario update <= 1.6.0

See merge request !16

updated usuario to 1.6, added yii2-swiftmailer as a dependency and disable password recovery in console

added supervisor autostart ENVs

See merge request !15

fix usuario ProfileController/show AccessControl

See merge request !14

- currently profile/show is open for "everyone"
- this patch overload the AccessControl behavior of the ProfileController via DI
- it restrict the action to logged in user and check that users without 'user'
  permission can only view their own profile

Removed deprecated widget-copy command