add done-field to db scheme; add checkboxes for read, update and create; start to build some kind of panel to show tasks as shown in the mockup
task list as partial; new task cannot be done at creation; list only title and status; filter list by event
add 'add' button to tasks partial; set done status via ajax on index page
Merge branch 'dev' into feature/taskList
add test file for tasks
add user and task factories