foreground part complete
button's attribute "data-id" removed
background part

not completed yet
syntax fix
styles and fixes
notifications module move to "bg\fg" folders
sync notifications visible in all tabs
define KlavoTools.Notifications
create competition module
competitions: "check" method
Merge remote-tracking branch 'origin/notifications' into competitions
notification auto show\hide
add action 'clicked"

the event fires when user clicked on body of notification
Merge remote-tracking branch 'origin/notifications' into competitions
add 'onclick' param
option page: notification settings
we can disable competition module on the option page
Merge pull request #2 from Fenex/competitions

Competitions module