update download link
serious refactor, changed technique of nesting and chaining
add comments for that black magic
change trace filter for testit lines
update comment about chaining and nesting
update test.done() to make it chain-closer
some update of test.done()
do generateError more js-style
code _doTest - new interface for tests wich controll chaining
code _testIT and _testThem - analogs for _it and _then in new style