acu116739 ported reusable rake tasks from right_link_package to right_develop
ame RightDevelop::Buckets to RightDevelop::S3. 
Get rid of generalized storage abstractions (will rewrite to use fog, not right_aws, if we ever add another storage provider).
Make RakeTask loading less dangerous with older Rake versions that mixin their DSL into Object.
Add trivial Cucumber coverage for S3 Rake tasks.
Fixup interface of Git rake task so it's consistent with the others.
Prevent evil Rake DSL from invading the world.
Add trivial Cucumber coverage for Git rake task.
acu116739 renamed git:branch,git:check to git:checkout,git:verify
acu116739 vetted fetch output because it exits nonzero with errors when it fails to connect to github
acu116739 added pre/post step support for customizing git tasks
acu116739 use dev gem source to locate json-1.4.6-x86-mswin32
Merge pull request #5 from rightscale/teal_13_11_acu116739_share_code_thru_right_develop

acu116739 ported reusable rake tasks from right_link_package to right_develop