Merge branch 'hotfix/2.4.3'

* hotfix/2.4.3:
  fixed sprockets with updated version
Merge branch 'release/2.4.4'

* release/2.4.4:
  updated CHANGELOG
  switched from plain Bootstrap3 template to AdminLTE and added Gravatar support
Merge branch 'release/2.4.5'

* release/2.4.5:
  v 2.4.5
  moved Budget select to popup and fixed font
  added some random backgrounds
fixed log in 500 error
Merge branch 'hotfix/2.4.6' into develop

* hotfix/2.4.6:
  fixed log in 500 error