Remove beta and RC paths in documentation

Signed-off-by: Xavier Noria <fxn@hashref.com>

railties/guides/source/3_0_release_notes.textile

@@ -18,13 +18,11 @@ These release notes cover the major upgrades, but don't include every little bug
 
 endprologue.
 
-WARNING: Rails 3.0 is currently in beta. This means that there are probably bugs and that you should "report them":http://rails.lighthouseapp.com/projects/8994-ruby-on-rails/overview if you see them. You also may not want to run the NORAD nuclear launch application off a beta version. But if you're starting development on a new application and you don't mind getting wind in your hair, please do jump on board!
-
-To install the last Rails 3 beta:
+To install Rails 3:
 
 <shell>
 # Use sudo if your setup requires it
-gem install rails --pre
+gem install rails
 </shell>
 
 
@@ -77,10 +75,8 @@ More information - "The Path to Rails 3: Approaching the upgrade":http://omgblog
 
 h3. Creating a Rails 3.0 application
 
-The new installing rails sequence (for the beta) is:
-
 <shell>
-$ gem install rails --prerelease
+# You should have the 'rails' rubygem installed
 $ rails new myapp
 $ cd myapp
 </shell>

railties/guides/source/getting_started.textile

@@ -149,8 +149,6 @@ Usually run this as the root user:
 # gem install rails
 </shell>
 
-NOTE. In the Rails 3.0.0-beta, you will need to manually install the dependencies for Rails itself as a bug in rubygems will cause these to not be installed, see the "3.0 Release Notes":3_0_release_notes.html for the commands to run.
-
 TIP. If you're working on Windows, you may find it easier to install "Instant Rails":http://instantrails.rubyforge.org/wiki/wiki.pl. Be aware, though, that Instant Rails releases tend to lag seriously behind the actual Rails version. Also, you will find that Rails development on Windows is overall less pleasant than on other operating systems. If at all possible, we suggest that you install a Linux virtual machine and use that for Rails development, instead of using Windows.
 
 h4. Creating the Blog Application
@@ -1486,6 +1484,7 @@ h3. Changelog
 
 "Lighthouse ticket":http://rails.lighthouseapp.com/projects/16213-rails-guides/tickets/2
 
+* August 30, 2010: Minor editing after Rails 3 release by "Joost Baaij":http://www.spacebabies.nl
 * July 12, 2010: Fixes, editing and updating of code samples by "Jaime Iniesta":http://jaimeiniesta.com
 * May 16, 2010: Added a section on configuration gotchas to address common encoding problems that people might have by "Yehuda Katz":http://www.yehudakatz.com
 * April 30, 2010: Fixes, editing and updating of code samples by "Rohit Arondekar":http://rohitarondekar.com