Rename the project to html5ever
List some features / goals in the README
Implement the HTML serialization algorithm
Allow dropping the DOCTYPE during parse

And use this to reproduce the output of validator.nu's HTML2HTML.
Tokenizer debug cleanup
Keep parsing after </script> even though we don't handle it properly
Return to the correct raw data state after seeing a less-than sign

We were erroneously interpreting character references inside <script> in some cases.
Fix generate_implied_end_except and use it in one additional place
Implement <li> <dd> <dt>
InTable mode
InTableText mode
InCaption mode
InColumnGroup mode
Define a helper for inserting phantom elements
InTableBody mode
Simplify the use of declare_tag_set!()
InRow mode
InCell mode