Merge pull request #509 from jeffmccune/feature/master/vsphere_server_attribute

[vsphere] Add vsphere_server connection attribute

 * Small patch with tests, merging my own code.

lib/fog/vsphere/compute.rb

@@ -26,6 +26,8 @@ module Fog
 
         attr_reader :vsphere_is_vcenter
         attr_reader :vsphere_rev
+        attr_reader :vsphere_server
+        attr_reader :vsphere_username
 
         # Utility method to convert a VMware managed object into an attribute hash.
         # This should only really be necessary for the real class.
@@ -125,6 +127,7 @@ module Fog
           end
 
           @vsphere_is_vcenter = @connection.serviceContent.about.apiType == "VirtualCenter"
+          @vsphere_rev = @connection.rev
 
           authenticate
         end

tests/vsphere/compute_tests.rb

@@ -34,7 +34,7 @@ Shindo.tests('Fog::Compute[:vsphere]', ['vsphere']) do
   end
 
   tests("Compute attributes") do
-    %w{ vsphere_is_vcenter vsphere_rev }.each do |attr|
+    %w{ vsphere_is_vcenter vsphere_rev vsphere_username vsphere_server }.each do |attr|
       test("it should respond to #{attr}") { compute.respond_to? attr }
     end
   end