Global declare command for Admins

Global declare command that sends an anonymous declare to all rooms on
the server, including battle rooms and private rooms.
Chat declare for Leaders

A global declare that sends an anonymous declare to all chatrooms on the
server (no battle rooms, unlike globaldeclare).

Used by Leaders and Admins.
Declares to Admin only, add permission

Changed cdeclare to Admin only, and added a 'gdeclare: true,' permission
to Admins.

Removed declares 'label' from the declare.
Spelling error :|
Merge pull request #373 from Cosym/patch-1

Global declare command for Admins