wip application form

adding RGSOCApplication model, migrations and some model magic

simple mail template, adding strong parameters to application forms

add mailer to controller. TODO move to background job

move application form mailer into suckerpunch job worker

add date dropdowns, make all fields mandatory

  This should be the basic form without styling for #61

add warning header and a bit of tests

update gems

add application info text without style

adding some 90ties feeling to the warning

restructure application form, add hints and labels to questions

clean up application

fix applications specs