Merge pull request #5 from cbos-team/master

fix navigation
Merge pull request #6 from cbos-team/master

ModuleDAOImpl fix
Merge pull request #7 from cbos-team/master

final fix of navigation backend
Merge pull request #8 from cbos-team/master

content logic
layout for modules and pages of guest, user and admin
Merge pull request #53 from dupps/master

layout for modules and pages of guest, user and admin