Change program generating test data

-Change program to produce more parametrized output:
	*Introduce parameters to set number of unique rules (u) and merges in policy (m).
	*Introduce parametr for maximum number of reocurrances of a label in merged policy (L).
	*Add possibility of getting list of labels from stdin in addition to generating random ones.
-Some minor style adjustments to libsmack coding style.

Also:
-Add makefile for policies generation
-Add script generating different type of policies

Signed-off-by: Jan Cybulski <j.cybulski@samsung.com>