Merge remote-tracking branch 'upstream/release' into release

* upstream/release:
  updated release notes
  Call loop closure on the first frame
  updated release notes
  Add check for missing algo info structure.
  updated release notes
  Add class index to doxygen output
  added release notes for v0.4.1.txt
  Added support for building statically on Windows
  Removed TODO comment that was recently resolved
  Updated the default dashboard git url to point Kitware's GitHub repo
  Updated find module proceedures
  added better overview to readme doc
  rename README to README.md to indicate markdown syntax
  Include the PROJ include directory
Documentation changes.

Elaborated on some topics and fixed a few doxygen
control word issues.
Update release notes.
Remove duplicate line on comment.
Add message for error condition.