(maint) remove intermediate node object from tests

Prior to this commit, spec tests for Nodes controller were failing
because they still had the vestigal remains of the intermediate root
object in json. The actual implementation was changed in b3eac5d. This
commit removes the intermediate root object.
Merge pull request #192 from jeffweiss/remove_intermediate_node_object_from_tests

(maint) remove intermediate node object from tests
(maint) fix node report footer

Prior to this commit, when a node had more than 10 reports, the node
detail page would have a `nodes/report_table_tfoot` blurb rather than
actually rendering that partial view. This commit alters the call to
`render` so that the partial view is dereferenced and rendered.
Support for graph again (using jqplot)
Merge pull request #193 from jeffweiss/render_man

(maint) fix node report footer
Merge pull request #191 from fhrbek/rails3_graphs

Support for graph again (using jqplot)
(maint) allow running w/ RAILS_ENV=production

Prior to this commit, the rails 3 version of dashboard would not run in
production because of two problems:

 1. bundler didn't know to look for the haml gem outside the :assets
group
 2. the production config explicitly didn't serve static assets (like
images)

This commit adds the haml gem, already a dependency of the existing
haml-rails gem in the :assets group, but outside the :assets group for
availability after assets have been precompiled. This commit also allows
for serving static assets.
Merge pull request #194 from jeffweiss/production_consumption

(maint) allow running w/ `RAILS_ENV=production`
(maint) ignore packaging artifacts
Chart label formatting (conditional time format, shorter date format)
Merge pull request #195 from jeffweiss/ignore_packages

(maint) ignore packaging artifacts
Merge pull request #196 from fhrbek/rails3_chart_labels

Chart label formatting (conditional time format, shorter date format)
Remove rbenv, add it to gitignore.
Update README requirements and remove the Rails3 branch section.
Simplify the CSV aliasing adjust just for Ruby 1.8
Use ? variables in the resource queries.
Merge pull request #203 from sodabrew/rails3-queryqs

Use ? variables in the resource queries.
Merge pull request #202 from sodabrew/rails3-CSV

Simplify the CSV aliasing adjust just for Ruby 1.8
Merge pull request #200 from sodabrew/rails3-gitignore

Remove rbenv, add it to gitignore.
Merge pull request #201 from sodabrew/rails3-README

Update README requirements and remove the Rails3 branch section.