add image for ticket design
added chalk border image
add background-image
add ActiveRecord-testclass
add fonts
add layout and style of the main page, also add docs-dir with mock-up image
add styleguide.txt
delete old and obsolete files
fixed #38  fixed #39
Change request handling in the backend.
added retrieveByCredentials function to see, if a user is registered or not.
Login HTML #43