Merge pull request #2256 from REJack/v3-dev

.gitignore

.npmignore

build/js/AdminLTE.js

build/js/Layout.js

build/js/PushMenu.js

build/js/Toasts.js

build/js/Treeview.js

build/npm/DocsPlugins.js

build/npm/DocsPublish.js

build/npm/Plugins.js

build/npm/Publish.js

build/scss/AdminLTE-raw.scss

build/scss/AdminLTE.scss

build/scss/_brand.scss

build/scss/_buttons.scss

build/scss/_cards.scss

build/scss/_colors.scss

build/scss/_control-sidebar.scss

build/scss/_dropdown.scss

build/scss/_layout.scss