rake installs and runs all samples

spec/samples_run_spec.rb

@@ -0,0 +1,14 @@
+require 'squib'
+
+describe Squib do 
+
+  it "should execute all examples with no errors" do
+
+    samples = File.expand_path('../samples', File.dirname(__FILE__))
+    puts "Samples: #{samples}"
+    Dir.chdir(samples) do
+      require_relative '../samples/basic.rb'
+    end
+  end
+
+end