Remove Rubocop - use hound
Allow user to specify the password
Fix Travis notifications
Use a remporary file to run groovy scripts

Here documents (using <<-GROOVYSCRIPT) do not work properly on windows,
specifically Powershell. This commit switches to using Ruby's tempfile.
Allow attribute overrides to work properly
Use travis namespace for 'ci' rake task.  Fixes #202.
Merge pull request #203 from opscode-cookbooks/yzl/issue-202

Use travis namespace for 'ci' rake task.  Fixes #202.
Merge branch 'master' of https://github.com/opscode-cookbooks/jenkins into pending