Ticket #1101 (new defect)

Description

change table struct to (id, component, key_name, key_value, x_name, x_type, updatetime)
example record ex.

10, 'banner', 'managebanner', true, 'ali', 1, '2008-04-14 18:21:42'

x_name is filed name for user/group id
x_type is typo of x_name(user or group or maybe default)

another changes for this stuff: enhance key_value for support other value type like integer,...
with this feature we can limit number number of post by user, expiration date of using a gadget for a user,...