[mod:index.ctp] Add the view for the landing page of Student

Modify index.ctp file to add the view for the landing page for
Students in the web app.
[add:view_group_members.ctp] Add View Group Members view

Add view_group_members.ctp to the View/Student folder that
contains the view for displaying group members of a field
group.
Merge branch 'master' of https://github.com/kasunkv/MoDACA