fix: hours.validation
add: saving of planning preferences
add: display of month max possibly described hours (current_month_time_balance)
add: planning_preferences restore, but not the way it should be
add: drop planning_preferences button
Merge branch '60159_user_settings' into stage

Первая тестовая версия.
add: drop planning_preferences button saves current_user and project_id
Merge branch '60159_user_settings' into stage
add: drop_settings link is now a button
Merge branch '60159_user_settings' into stage
add: buttons replaced by check_box_tag
Merge branch '60159_user_settings' into stage
fix: layout of check_box
Merge branch '60159_user_settings' into stage
add: auto-complition for planning_managers candidates are now sorted and active
add: drop of planning preferences redirects to blank preferences
Merge branch '60159_user_settings' into stage
Merge branch '60159_user_settings'
rm: estimated_time before_destroy validation
fix: google time (with time_zone now)