add field "sequence" to Task
add fields "ip" and "ua" to Quiz
model: bool finished -> int state
model quiz: add fields 'tasks' and 'answers'
quiz format: task is 6-th result of functions
implement random sequence of answers
model: implement helper methods
fix task() invokation in quiz hello
model: move methods to proper place & other fixs
_ is now normal method of app (not static method)
implement selecting of answer in task
model: task.quiz is cached
implement finishing quiz and viewing results
implement quiz and task checks as filters
quiz cancelling
show active and finished tests
add file favicon.ico
add layout
layout: h1 and anchor to main page
typo