Added in section 2.4 on uninstalling rubies from .rbenv/versions to the README.
Embrassing typo in the anchor link neme != name.
And better codify the rbenv command just for good measure.
Changed doc/README.mdtoc and built README.md and changed nomenclature to 'ruby versions' as requested.
Fixed broken link to RVM in documentation
Installation Step 1 is a one liner

Not a big change, just thought it's always good to make it easier for a beginner
Added bash support for completion of full command line
Merge pull request #258 from baer/patch-1

Installation Step 1 is a one liner
Merge pull request #278 from mattdbridges/master

Just trying to keep the README.md up to date with Ruby versions
Update README: use last version of jruby in examples
Sync doc/README.mdtoc with the actual README

All the changes to documentation should be done in doc/README.mdtoc
Merge pull request #188 from tundramonkey/master

Added in short note on Uninstalling Rubies under new 2.4 section in README
Merge pull request #225 from dentarg/master

Fixed broken link to RVM in documentation
fix `versions` in case current version doesn't exist

`rbenv-versions` tries to read the current version to display a marker
next to it, but if that fails the whole script aborts.

This change makes it so that the failures from `rbenv-version-name` are
tolerated. It also makes the `--bare` mode never call it in the first
place, because it doesn't need to display a marker.
fix obsolete usage instruction
Merge pull request #288 from mislav/usage-fix

fix obsolete usage instruction
fix install instructions for ubuntu (using version 12.04, but should work for all versions)
Merge pull request #286 from candeira/ubuntu-install-instructions

fix install instructions for ubuntu & other linux
replace build system with generated table of contents

Gets rid of `doc/README.mdtoc` and its build script. Since GitHub.com
renders anchors for each heading, all we have to do is put a simple
table of contents into `README.md` itself, and everything will get
linked up nicely.

Pros of this approach:
* We don't have to point out to people not to edit `README.md` anymore
* We don't have to run the build script each time README gets edited

Cons of this change:
* The "chapter" numbers are lost. They were silly anyway.

`doc/mdtoc` renders a Markdown table of contents for a Markdown file.
`doc/filter-toc` filters that down to only headings after ToC.
This script can be used to easily insert ToC into the current document
when editing `README.md` with, e.g., Vim:

    :read !doc/filter-toc %
fix documentation about manually compiling Ruby

./configure doesn't exist by default in repo: use autoconf to create it.