PUBLIC MARKS with tags tests & javascript

This is not a compliance or conformance test suite; an implementation can fail many of the tests here and still be HTTP conformant. Instead, the idea is to show what HTTP mechanisms different implementations support, and how they support them, since many aspects of these libraries are underdefined. Each group of tests explains what is being tested and what the implications of failure are. Although many of the tests are automated, some may require user interaction, via a "run test" button. Be sure to follow any instructions carefully.