A collection of curated commits

[curds01]

This PR does the following

• Corrects a project specification error and documents project specification
• Throughout the doxygen modules, replaces Menge with %Menge so that inadvertent links to the namespace aren't created.
• Extend and correct profile selector:
  • Correct the interface so that profiles don't get incorrectly copied
  • Add uniform-distribution random profile selector
  • Add weighted random profile selector
  • Add example to exercise new profile selectors
• Extend the C-API wrapper to include:
  • per-agent preferred velocity
  • State information (id and name)