Make more clear the development dependencies

README.rdoc

@@ -32,15 +32,25 @@ http://a1.mzstatic.com/us/r30/Publication/v4/2c/f7/90/2cf7902f-f709-9125-c73d-87
 == Platforms
 
 * The build runs on Travis for:
-  * MRI Ruby 1.9.2
   * MRI Ruby 1.9.3
   * MRI Ruby 2.0.0
   * MRI Ruby 2.1.0
-  * JRuby in both 1.8 and 1.9 mode
+  * MRI Ruby 2.2.0
+  * MRI Ruby 2.2.2
+  * JRuby 1.9 mode
 
 == Bootstrapping a new CLI App
 
-The +methadone+ command-line app will bootstrap a new command-line app, setting up a proper gem structure, unit tests, and cucumber-based tests with aruba:
+The +methadone+ command-line app will bootstrap a new command-line app, setting up a proper gem structure, unit tests, and cucumber-based tests with aruba.
+
+It assumes you are using a standard Ruby development environment, which includes:
+
+* Some sort of Ruby version manager to allow you to manage Ruby as yourself and not as root/system
+* Bundler
+* Git
+
+_(Note that apps *powered* by this gem have no particular runtime dependencies as classes this gem provides depend only on the standard library)_
+
 
     $ methadone --help
     Usage: methadone [options] app_name