clarify compare_struct empty
clarify entire compare algorithm; breaking changes!
style
fix sorting arrays (bug in 5bd49a3)
normalize even more
add extension for type validation
style, whitespace
update copyright
whitespace
rename compare to validate
normalize validation result; breaking changes!
add is_valid util funs
add set for validate_type
add ovidiu obroiu as author
refactor validate_set, uses katt_util:validate
small change to katt_validate_type to extract Unexpected; readded tests
small readability change for katt_validate_type eunit tests
removed tests that run twice
Merge branch 'set_matching' of https://github.com/odobroiu/katt into set_matching

Conflicts:
	src/katt_util.erl
	test/katt_tests.erl