alternates
minor tweaks: moved "new student button" to the top of the page
Merge branch 'development'

Conflicts:
	app/views/groups_student_list.scala.html
	app/views/studentManagement.scala.html
local dev mode doesnt need ldap anymore
Merge branch 'master' of https://github.com/FHK-ADV/lwm into development

Conflicts:
	app/views/groups_student_list.scala.html
	app/views/studentManagement.scala.html
fixing usability issues
removing old preparation times when unbinding assignment
Merge branch 'development'
indentations
Merge branch 'master' of https://github.com/FHK-ADV/lwm into development

Conflicts:
	app/views/groups_student_list.scala.html
	app/views/studentManagement.scala.html
Merge branch 'master' of https://github.com/FHK-ADV/lwm into development

Conflicts:
	app/assets/javascripts/atlas.js
	app/controllers/GroupManagementController.scala
	app/views/groups_detail_management.scala.html
	app/views/groups_student_list.scala.html
	app/views/studentManagement.scala.html
Added breadcrumbs