acu87966 fixed executable_sequence_spec for windows ci but using a real tarball instead of mocking File class
acu87966 fix for monkey-patching the Object class in cloudstack_spec
added tests for windows dhcp_lease_provider
acu87966 added a safety check to ensure expected file is gone in executable_sequence_spec due to spurious rake spec failure on Windows
Merge pull request #163 from rightscale/teal_13_05_acu87966_spec_fixes

Teal 13 05 acu87966 spec fixes