[security] Improved collapse, externalized css
[security] Initial integration of the tree in Hive
[security] Harmonize tree and roles section of Hive
[security] Replace <table> by <div> in Hive
[security] Updated style for ACL node and added rwx info
[security] Restyled ACLs tree nodes
[security] Simplify Sentry privilege form
Merge remote-tracking branch 'remotes/origin/sentry' into sentry