Merge branch 'master' into 2.0

Conflicts:
	web/_posts/2011-06-07-inside-rubinius-20-preview.markdown

Rakefile

@@ -104,6 +104,17 @@ task :default => %w[build vm:test] do
   run_specs
 end
 
+task :github do
+  cur = `git config remote.origin.url`.strip
+  if cur == "git://github.com/evanphx/rubinius.git"
+    sh "git config remote.origin.url git://github.com/rubinius/rubinius.git"
+    puts "\nSwitch to git://github.com/rubinius/rubinius.git"
+  else
+    sh "git config remote.origin.url git@github.com:rubinius/rubinius.git"
+    puts "\nSwitch to github.com:rubinius/rubinius.git"
+  end
+end
+
 # See vm.rake for more information
 desc "Build everything that needs to be built at default level."
 task :build => ["build:build", "gem_bootstrap"]

web/_posts/2011-06-07-inside-rubinius-20-preview.markdown

@@ -4,3 +4,148 @@ title: Inside the Rubinius 2.0 Preview Release
 author: Brian Ford
 ---
 
+Houston, we have a problem. Complex projects are difficult to transition
+forward and Rubinius is a complex project. Rubinius is at the point of a major
+transition and we need your help to move forward.
+
+Just over a year ago, Rubinius released version 1.0. Since then, dozens of
+contributors have added over 2,200 commits to the master branch and we have
+released seven new versions. At the same time, we have added nearly 450
+commits on a development branch to remove the global interpreter lock (GIL)
+and begin adding Ruby 1.9 and Windows support.
+
+![Rubinius 2.0 Developer Preview](/images/rubinius-2-0-developer-preview-blog-post.png)
+
+Today we are releasing *Rubinius 2.0 Developer Preview*. The primary focus of
+this release is true Ruby multi-threaded concurrency. Additionally, it
+contains the beginnings of Ruby 1.9 and Microsoft Windows support.
+
+
+### Rubinius 2.0 Developer Preview
+
+We are seeking developers interested in running their Ruby and Rails projects
+on Rubinius to help us iron out issues as we work toward the final 2.0
+release. Let's look at the details of the 2.0 developer preview.
+
+One of the central features of Rubinius 2.0 is a fundamental change in the
+threading architecture. In Rubinius 2.0, Ruby threads will run with true
+concurrency. This means that if multi-core or multi-CPU hardware is available,
+Ruby code on different threads will actually run in parallel.
+
+Another central feature of Rubinius 2.0 is support for both Ruby 1.8.7 and
+Ruby 1.9.2 syntax. The Rubinius 2.0 support for Ruby 1.8.7 should be 100%
+backward compatible with the support in the Rubinius master branch. The full
+Ruby concurrency is enabled regardless of what language syntax mode is active.
+
+
+### Repository Migration
+
+We are migrating the main Rubinius repository to the [Rubinius](
+https://github.com/rubinius) organization.
+
+The RVM project has already been updated to work with the new repository. So
+`rvm install rbx` will use the new repository.  If you have an existing clone
+of Rubinius, update and run `rake github` to point your existing repository to
+the new one.
+
+You can clone directly from the [new repository](https://github.com/rubinius/rubinius).
+
+
+### Installation
+
+For testing Rubinius with your application, installing with RVM is probably
+the easiest. To install the 2.0 developer preview, ensure that RVM is updated:
+
+    rvm get head
+    rvm reload
+
+Then, install the Rubinius 2.0.0pre branch:
+
+    rvm install rbx-2.0.0pre
+
+If you are interested in helping develop Rubinius, we suggest you clone the
+repository directly and build. Rubinius runs fine from the source directory so
+you don't need to install it. For more details about building from a clone,
+see [Getting Started](http://rubini.us/doc/en/getting-started/).
+
+
+### Configuration
+
+The goal of Rubinius 2.0 is to fully support both Ruby 1.8.7 and 1.9.2 in a
+single executable. When running Rubinius, you can select which version to use.
+There are configuration options to change which versions are supported and
+which version is the default.
+
+The first configure option is `--enable-version=X[,Y]`. This option sets which
+language versions will be supported. An example is:
+
+    ./configure --enable-version=1.8,1.9
+
+The language versions can be specified as `18` or `1.8`. Multiple versions are
+separated by a comma and no space.
+
+The second configure option is `--default-version=X`. This option sets which
+language version is the default when running Rubinius. An example is:
+
+    ./configure --default-version=1.9
+
+These options are intended to be used together. You must enable a version to
+select it as the default, so the options must come in the following order:
+
+    ./configure --enable-version=X,Y --default-version=Y
+
+Once you have enabled support for a language version, to select that mode when
+running Rubinius, use the `-X18` or `-X19` command line switches. For example:
+
+    rbx -X19 -v
+
+This command will run Rubinius with the 1.9 language mode enabled.
+
+You may also use the `RBXOPT` environment variable to select the lanugage
+mode. Assuming that 1.8 is the default mode, the following command would run
+Rubinius with the 1.9 language mode enabled:
+
+    RBXOPT=-X19 rbx -v
+
+Right now, only the 1.8 language mode is enabled in the 2.0.0pre branch.
+However, we will be enabling the 1.9 mode in the very near future. The default
+mode will continue to be 1.8 unless you configure Rubinius to run in 1.9 mode.
+
+
+### Building on Windows
+
+On Windows, Rubinius uses the [MinGW-w64](http://mingw-w64.sourceforge.net/)
+compiler to build a native application. There remains a lot of work to do for
+Windows support but the Rubinius VM is currently compiling on Windows 7.
+
+If you are a bleeding-edge Windows developer interested in diving into
+Rubinius, here's how to get started:
+
+1. Install *MRI 1.9* using [RubyInstaller](http://rubyinstaller.org/).
+1. Install [MSysGit](http://code.google.com/p/msysgit/).
+1. Install the 32bit or 64bit MinGW-w64 toolchain.
+1. Clone the Rubinius repository.
+1. In CMD, run `ruby configure`.
+1. Run `rake`.
+
+
+### Moving Forward
+
+In the near future, we will release another version of Rubinius from the
+current master branch. We hope to merge 2.0.0pre into master as soon as
+possible and continue working toward the 2.0 final release. We'll make that
+decision based on your reports about how the 2.0.0pre branch is working with
+existing 1.8.7 applications.
+
+We greatly appreciate your help polishing up the Rubinius 2.0 release! Follow
+us on [Twitter](http://twitter.com/rubinius) for updates and stop by #rubinius
+on freenode.net to chat about anything on your mind.
+
+
+### Rubinius Support on EngineYard AppCloud
+
+Rubinius 1.2.3 is currently in beta on Engine Yard AppCloud, and we encourage
+users to [give it a try](http://docs.engineyard.com/rubinius.html). Engine
+Yard will support Rubinius 2.0.0 after it’s officially released.
+
+To learn more about Rubinius, join Engine Yard for a [Platform Options Webinar](http://pages.engineyard.com/RubyPlatformOptionsWebinarJuly212011.html) in July.