I've packaged together the latest stable release:
It contains the tests, examples, documentation and headers. It also contains the other Boost libraries that these depend on. Most of the other libraries are used by the examples, but not required for using the headers.
To use the library in your project, just add the root of the extracted directory to your include path (ie, /home/me/downloads/extension-reflection).
If you want to make sure that the tests pass on your system, you will need bjam - see boost.org. Then run the test_redist.sh script. If bjam is not in your path, you'll need to set the variable BOOST_BJAM_PATH. You can also set BOOST_BJAM_OPTIONS if needed.
I'll provide a Windows .bat file in the next release.
For the documentation, I've only updated the Extension reference section. The docs are at extension-reflection/libs/extension/doc/html/index.html in the redistributable. I'll post the latest docs up on this site once I've fixed some of the tutorials.
Feel free to let me know if you have trouble getting the redistributable to work on a given system - it is a work in progress.
Also, it can take a little bit of setup to use Extension without Bjam. If you've worked it out for your compiler/OS, feel free to send me your instructions and I'll try to post them with the documentation.