[common] Refactor Retryable
[agent] remove unused gems from agent
[common] Add docs for Retryable. Fix broken tests.
Add director/spec to load path.

When running director specs from the bosh root dir, require blueprints
failed because director/spec was not in the load path.
Migrate blobs/final release from ATMOS to S3 (BAT and BOSH)

* Point blob store to S3
* Change object id for legacy ATMOS objects
[cli] Fix minor typo error
Merge pull request #171 from cloudfoundry/typo-error

[cli] Fix minor typo error
[cli] Show user column in tasks [Fixes #48620797]
Merge pull request #170 from cloudfoundry/add-user

[cli] Show user column in tasks [Fixes #48620797]
Merge pull request #167 from mmb/director_blueprints

Add director/spec to load path.
Merge pull request #169 from cloudfoundry/atmos2s3

Migrate blobs/final release from ATMOS to S3 (BAT and BOSH)
Merge pull request #165 from oppegard/retryable_refactor

[common] Refactor Retryable
Make dummy infrastructure and platform workable
Merge pull request #166 from pmenglund/agent_cleanup

[agent] remove unused gems from agent
Merge pull request #174 from yudai/request/workable_dummies

Make dummy infrastructure and platform workable