Merge pull request #3 from j3py/Isabelle_check_in

check_in
Merge pull request #4 from j3py/Isabelle_check_in

check_in 2
added teacher form and view
add style
fixed merge conflicts
Merge branch 'master' of github.com:j3py/Attendy
Merge pull request #5 from j3py/julian-teacher-form

Julian teacher form
fixed teacher form query
Merge pull request #6 from j3py/julian-teacher-form

fixed teacher form query
fixes and style
templates
Merge branch 'master' of github.com:j3py/Attendy into Isabelle_check_in
css