New headMeassage template

New template to add low submission queue message to the slogan template.

needs database updates:

INSERT INTO vars (name, value, description) VALUES
('subs_level','15','Level at which to not to display low submissions
message');
INSERT INTO vars (name, value, description) VALUES
('subs_message','Slash Site is powered by your submissions, so send in
your scoop.','Messaged displayed when submission queue is low');
Update header template

Add process headMeassge and a clear dive to slogan div.
Style Slogan for new message

Style slogan and had message.  Increased fort size and added clear div
code.
Update THEME manifest

Added new headMessage to THEME manifest.
Add new vars for headMessage

Two new vars needed for headMeassage templates added to db init codes.
New head message template

Adds low submission message to header next to slogan.

Needs this added to vars:

INSERT INTO `vars` VALUES ('subs_level','15','Level at which to not to
display low submissions message');
INSERT INTO `vars` VALUES ('subs_message','Slash Site is powered by
your submissions, so send in your scoop.','Messaged displayed when
submission queue is low');