Merge branch 'laravel6-adminlte3'
* laravel6-adminlte3: (33 commits)
change readme for older versions
enhanced url config values & more (#410)
Update composer.json (#408)
Apply fixes from StyleCI (#407)
fixed main_views copy and added load fallback (#406)
some small various fixes & new adminlte:status command (#399)
some little fixes & enhancements (#397)
readme update & small fixes in install command (#395)
Refactoring ServiceProvider and adminlte:installer (#381)
Delete package-lock.json
Add Laravel Mix instructions (#384)
Add missing header tag (#383)
rename service provider in readme
AdminLTE v3 sidebar menu highlight fix & composer driven vendor assets (#378)
fix tests
fix tests
add adminlte logo
rename adminlte css min
rename adminlte css
cleanup
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