White-space bullshit v1
Change XmlDocumentation XML documentation
Add <param> tag support and HTML encoding

- Change name to short name and display namespace after summary;
- Change cref from autolink to normal link.
Add <exception> tag support

- Revert back to ID.FullName file names so links mostly work;
- Split Member.Render into Render and RenderHeader for better control
over positioning;
- Let the ID class itself render the link.