users and groups
(cherry picked from commit 7055dc1)
prepare auth
(cherry picked from commit b1def78)
removed unnecessary return
(cherry picked from commit 7af2b1b)
moved checkPassword/setPassword to lib/adapter.js, new method checkGroup in lib/adapter.js
(cherry picked from commit 7593ae8)
updated version
(cherry picked from commit 3f6e2bd)
prepare user/group management
(cherry picked from commit f95ff10)
updated roadmap
(cherry picked from commit f1de34a)
Merge pull request #27 from hobbyquaker/build

users and groups - Build branch