stop recomputing locale -a constantly

fixes an outstanding issue on the locale -a guessing
also fixes perf issues in the rspec tests (e.g. deploy
provider)
Fix typo in release notes.
Merge pull request #2425 from opscode/lcg/memoize-locale

stop recomputing locale -a constantly
Populate the actors when creating groups
Add unit test for group normalization in ChefFS
Merge pull request #2073 from opscode/ryan/group_post-master

Populate the actors when creating groups
Merge branch 'tball/restore-050d148' - this merges PR https://github.com/opscode/chef/pull/2073 into master after the force-push shenanigans
WIP: lazy deep merging
remove lots of useless deep merge duping
remove cache resetting
fix ImmutableAttributeModification exception
fix reset_cache specs busted by removing that
add specs busted by dup removal
typo fix in specs
revert to serdar's deep_merge de-dup version
Merge pull request #2447 from opscode/lcg/lazy-deep-merge2

Lcg/lazy deep merge2
adding some more specs around to_hash
Merge pull request #2464 from opscode/lcg/to-hash-specs

adding some more specs around to_hash
add partial deep merge cache
add more commentary