Infinite Announcements

- Fix some issues with placeholder. Please note placeholder now use format %%placeholder%%.

• Fix sql issue.

• Fix send command cannot run in console.

Fix sql issue

• Added a option to toggle sound for announcement.

• Added 2 placeholders to return true/false if player have toggle announcement/sound:

• %infiniteannouncements_toggle_announcement%

• %infiniteannouncements_toggle_sound%

• You can send an announcement by command.

• If you set -1 in interval it's will not send announcement automatically.