Fix gem versioning and dependency issues

- we can run `rake test` again now, yey!

Author: Lordnibbler

Gemfile

@@ -4,10 +4,12 @@ gemspec
 
 group :test do
   gem "ruby-debug", "~> 0.10.4", :require => nil, :platforms => :ruby_18
-  gem "debugger",   "~> 1.1.1",  :require => nil, :platforms => :ruby_19
-  gem "shoulda"
-  gem "rake"
-  gem "mocha"
-  gem "nokogiri", ">= 1.5.0"
-  gem "timecop"
+  gem "debugger",   "~> 1.1",    :require => nil, :platforms => :ruby_19
+  gem "shoulda",    "~> 2.11"
+  gem "rake",       "~> 10"
+  gem "mocha",      "~> 0.14"
+  gem "nokogiri",   "~> 1.5"
+  gem "timecop",    "<= 0.6.0"
+  gem "systemu",    "~> 2"
+  gem "rspec",      "~> 2"
 end

ruby-saml.gemspec

@@ -25,5 +25,5 @@ Gem::Specification.new do |s|
 
   s.add_runtime_dependency("canonix", ["0.1.1"])
   s.add_runtime_dependency("uuid", ["~> 2.3"])
-  s.add_runtime_dependency("nokogiri", [">= 1.5.0"])
+  s.add_runtime_dependency("nokogiri", ["~> 1.5.0"])
 end