release 0.1.11 -- avoid activating Hanna gem in rubygems_plugin.rb

This is critical. The version of rubygems_plugin from Hanna v0.1.10
always required "hanna/version", which activated Hanna and Haml gems
and made using the newer Haml versions impossible.

References mislav#7

hanna.gemspec

@@ -2,11 +2,11 @@
 
 Gem::Specification.new do |s|
   s.name = %q{hanna}
-  s.version = "0.1.10"
+  s.version = "0.1.11"
 
   s.required_rubygems_version = Gem::Requirement.new(">= 0") if s.respond_to? :required_rubygems_version=
   s.authors = ["Mislav Marohni\304\207"]
-  s.date = %q{2009-09-17}
+  s.date = %q{2009-09-21}
   s.default_executable = %q{hanna}
   s.description = %q{Hanna is an RDoc implemented in Haml, making its source clean and maintainable. It's built with simplicity, beauty and ease of browsing in mind.}
   s.email = %q{mislav.marohnic@gmail.com}

lib/hanna/version.rb

@@ -1,6 +1,6 @@
 module Hanna
 
-  VERSION = '0.1.10'
+  VERSION = '0.1.11'
 
   # The version of RDoc that Hanna should use
   RDOC_VERSION = '2.3.0'

lib/rubygems_plugin.rb

@@ -1,13 +1,17 @@
-unless defined?(Hanna) or defined?(RDoc)
+unless defined?(::Hanna) or defined?(::RDoc)
   require 'rubygems/doc_manager'
-  require 'rubygems/requirement'
-  require 'hanna/version'
+
+  # define the Hanna namespace to prevent actions of rubygems_plugin from older versions
+  module Hanna; end
 
   class << Gem::DocManager
     alias load_rdoc_without_version_constraint load_rdoc
 
     # overwrite load_rdoc to load the exact version of RDoc that Hanna works with
     def load_rdoc
+      require 'rubygems/requirement'
+      load File.expand_path(File.join(File.dirname(__FILE__), 'hanna', 'version.rb'))
+
       Hanna::require_rdoc(false) # don't terminate if failed
 
       # call the original method