Added Agile board support to youtrack, closes #453
Added Agile board support to youtrack, closes #453

topdown/toggl-button,topdown/toggl-button,eatskolnikov/toggl-button,bitbull-team/toggl-button,glensc/toggl-button,andreimoldo/toggl-button,bitbull-team/toggl-button,andreimoldo/toggl-button,eatskolnikov/toggl-button,glensc/toggl-button,glensc/toggl-button