Storage of bootstrap rules, settings and other data.

Currently rules are stored in the 'variable' table like php array of 'rule' objects.
all inside of a rule is also objects.
i think that's good for manipulating in code but isnt ok for storing.
i think storing in a php file would be better with all data as arrays.
so if anyone would break bootstrap by providing 'bad' rule he can
always edit rules manually inside the storage php inc file.