Please clear your browser-cache after upgrading to 1.2.4

Improvements:

• Vietnamese slug-characters (#4091)
• Attributes for number field (#4117)
• Add watermarking/thumbnails to media-picker and media-manager (#4084)
• Make admin-menu a Vue component (#4064)
• Disable sidebar on refresh for mobile (#4061)

Bugfixes:

• Clear menu-cache when deleting items (#4083)
• Fix glyphicons not found (#4146)
• Richtextbox not saving multi-language (#4157)
• Remember old input upon form submit (#4104)
• Fix translation-seeder (#4140)
• Relationship not showing data when edit is disabled (#4017)

Language updates:

• French (#4080)
• Spanish (#4089)