Added some help text, and bumped version numbers. Added a Readable Index for /Contrib Fixing /Contrib Index URLs Revert Version Numbers.
* updated references to files which have since been moved * added reference to licensing * added brief summary in case a non-technical user happens upon repo first * miscellaneous Markdown-isms to make the doc more attractive * remove unused symlink README -> README.md I double-checked the makefiles and whatnot to ensure that the README symlink is not being referenced. It is not. Rather, `doc/README` and `doc/README_windows.txt` are copied for distribution.