Make invocations of /dev/null cross platform
Added abs_path method to the DSL
Make sure to clean up intermediate files from test runs
removed pipe from freebsd/virtualization plugin
Moved all shell invocations of an absolute path to Ohai.abs_path
Fixed the freebsd/virtualization plugin re: removing the pipe
Added a comment
Moved to the platform specific line break
Simplified deleting intermediate files
Delete files from the correct directory
.split => .lines
Merge pull request #186 from opscode/tn/surgery

Fixing all the weird, hard-to deal with shell command invocations.  Also, random bug fixes.