JSON LIBRARY UPDATES

+List of changes:

	1) TODO_LIST.txt removed from repository

	2) jsongen.erl:

		+ Number (float) generator: 'multipleOf' keyword has been removed (generator doesn't use it).

		+ Number (float) generator has been refactored. All cases work except when 'maximum' and 'minimum' keywords are being used together
		(The program generates a random float without looking at those values).