Transform: Extract link map functionality into a reusable class
Remove extra newlines at the end of file
Index: Fix page locations
Makefiles: Do not run the wiki preprocessor unnecessarily
Add .gitignore
Makefiles: Use wget instead of httrack

Httrack does not name downloaded files consistently. Also, it occasionally
manages to miss several files. Wget has needed filtering features since
1.15, so there no longer are reasons that prevent its usage.
Transform: Move xml_escape to separate file
Preprocess: Fix filenames that contain special characters
README: Update dependencies
Transform: Add a script to generate doxygen tag file