For running with Pimcore < 5.4
With Pimcore 5.4 the location of static Pimcore files like icons has changed. In order to make this bundle work with Pimcore < 5.4, please add following rewrite rule to your .htaccess.
# rewrite rule for pre pimcore 5.4 core static files
RewriteRule ^bundles/pimcoreadmin/(.*) /pimcore/static6/$1 [PT,L]