shell_out to diff => diff-lcs, cleaned up tests, updated gem versions
required diff libraries
[CHEF-4380] Fix missing include on shellout mixin
Added license information
IO:: -> IO.
Merge pull request #899 from juliandunn/CHEF-4380

[CHEF-4380] Fix missing include on shellout mixin
changed Ohai -> Chef in NOTICE
Merge pull request #898 from opscode/OC-8693

OC-8693
Add timeout attribute to scm resource
Use timeout attribute in git and subversion providers
Update the deploy resource to meet extended scm interface
Update specs to encompass scm timeout attribute
Remove stray :focus from spec