Namespace BufferedLogger to avoid a global 'logger'

[#81612110]

Signed-off-by: Karl Isenberg <kisenberg@pivotal.io>
Switch bosh_common to use Logging::Logger instead of Logger

[#81611698]

Signed-off-by: Michael Maximilien <maximilien@acm.org>
Switch bosh-dev to use Logging instead of MonoLogger

[#81611698]

Signed-off-by: Karl Isenberg <kisenberg@pivotal.io>
Switch bosh-monitor to use Logging instead of MonoLogger

[#81611698]

Signed-off-by: Karl Isenberg <kisenberg@pivotal.io>
Switch bosh-director to use Logging.logger instead of Logger

- Added BufferedLogger to print logs on test errors
- Removed EventLog::CustomLogger in favor of a formatted Logging::Logger

[#81611698]

Signed-off-by: Karl Isenberg <kisenberg@pivotal.io>
Switch bosh_cpi to use Logging::Logger instead of Logger

[#81611698]

Signed-off-by: Michael Maximilien <maximilien@acm.org>
Bump Gemfile.lock with logger gem dependencies

[#81611698]

Signed-off-by: Michael Maximilien <maximilien@acm.org>