added model for responding to a task
added view code for responding to a task
refactor check to model method
mark checkout as returned
show new responses in admin
added admin listing of responses
set correct state for response
register models for admin
clean up upload details form
list responses in admin
make campaing detail the homepage
redo dashboard for wireframes
redo task detail page
added modal dialog for confirm/reject
added accepting and rejecting of responses
show #no accepted/rejected on dashboard
list my tasks in my ummeli list
added admin for taskcheckout
updated my tasks to show different states
only expire non-returned tasks